Species care and breeding evidence

horsemans-cory / taxonomypersonal-anecdote

Author warns that eques offered by shops may instead be marked aeneus variants.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Graham Ramsay — Corydoras eques – the horseman's corydoras

ukaquarist.wordpress.com · Distribution and Availability
· published 2012-07-04 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

pygmy-cory / breedingpersonal-anecdote

tmiravent reports never achieving reproduction of these fish, despite breeding pandas.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Vitor Esculcas (vesculcas); tmiravent — Reprodução Corydoras pygmaeus

www.aquariofilia.net · tmiravent reply, 12 August 2015
· published 2015-08-11 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

pygmy-cory / breedingpersonal-anecdote

Hellweg uses a mature sponge filter, plants, thin sand and leaves in about 21 L, with mature breeders and male-biased groups.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Mike Hellweg — Corydoras in Miniature

www.tfhmagazine.com · Selecting a Breeding Tank
· published date unknown · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

pygmy-cory / breedingpersonal-anecdote

He reports no need for further cooling when already at 22–25 °C and says well-fed adults leave eggs/fry alone.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Mike Hellweg — Corydoras in Miniature

www.tfhmagazine.com · Proper Water Conditions; Spawning
· published date unknown · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

pygmy-cory / breedingpersonal-anecdote

JuJuFish reports unsuccessful attempts and speculates about scuds; no evidence establishes scuds as the cause.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

SkaleyAquatics; JuJuFish — Skaley Aquatics: The Fish Journal

scapecrunch.com · post #7, 7 January 2026
· published 2025-11-24 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

cw009 / breedingpersonal-anecdote

A documented CW009 cohort had both low reported fertility and a hatchling loss before juvenile transfer.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Horgosh — Green Laser Cory Fry. A breeding documentation

www.reddit.com · main post; comments by Horgosh on time to 2 cm
· published 2025-08-20 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

pygmy-cory / breedingpersonal-anecdote

A pygmaeus group yielded more than 70 juveniles after earlier unsuccessful attempts.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Vitor Esculcas (vesculcas); tmiravent — Reprodução Corydoras pygmaeus

www.aquariofilia.net · vesculcas posts 11 and 12 August 2015
· published 2015-08-11 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

black-venezuela-cory / breedingpersonal-anecdote

A black trade-form journal ultimately reports seven survivors to adulthood, with inconsistent earlier denominators.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

GreenNeedle (formerly Supercoley1; signs AC) — Castaway - 10Ltr Fry tank - A brutal ending

www.ukaps.org · posts #1, #4 and #13
· published 2010-04-26 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

pygmy-cory / breedingpersonal-anecdote

A modern pygmaeus journal records 44 eggs, without a verified fry endpoint in the inspected material.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

SkaleyAquatics; JuJuFish — Skaley Aquatics: The Fish Journal

scapecrunch.com · posts #6 and #8, 7 January 2026
· published 2025-11-24 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

cw009 / breedingpersonal-anecdote

{"setup": {"rearing_container": {"value": 2, "unit": "L"}, "water_changes": "daily, using parental tank water", "food": "Tetra baby food from day 3, later micro wafers and Artemia/Cyclops"}, "outcome": {"collected_eggs": 14, "reported_fertilized": 4, "reported_hatched": 4, "surviving_juveniles": 3, "one_loss_before": {"value": 3, "unit": "weeks"}, "transfer_size": {"value": 2, "unit": "cm, length basis unspecified"}, "time_to_transfer_size": {"value": 3.5, "unit": "months, approximate"}}}

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Horgosh — Green Laser Cory Fry. A breeding documentation

Detailed reported record — unknown

Event date: 2025-04

adult_tank_size: not reported (missing)
food_amount: not reported (missing)
GH: not reported (missing)
KH: not reported (missing)
measured_temperature: not reported (missing)
outcome-collected_eggs: 14 · unit unknown (reported)
outcome-one_loss_before: 3 weeks (reported)
outcome-reported_fertilized: 4 · unit unknown (reported)
outcome-reported_hatched: 4 · unit unknown (reported)
outcome-surviving_juveniles: 3 · unit unknown (reported)
outcome-time_to_transfer_size: 3.5 months, approximate (reported)
outcome-transfer_size: 2 cm, length basis unspecified (reported)
pH: not reported (missing)
setup-food: "Tetra baby food from day 3, later micro wafers and Artemia/Cyclops" · unit unknown (reported)
setup-rearing_container: 2 L (reported)
setup-water_changes: "daily, using parental tank water" · unit unknown (reported)

horsemans-cory / breedingpersonal-anecdote

{"setup": {"dry_period": {"value": 4, "unit": "weeks"}, "subsequent_observation": {"value": 2, "unit": "weeks"}, "interventions": ["cool rainwater/RO changes", "increased flow and aeration", "heavy blackworm feeding", "water from another spawning cory tank"]}, "outcome": {"stage": "no_eggs_observed", "courtship": "males chasing females"}}

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

ScareCrow — MTV-Kribs: eques breeding updates, page 7

www.ukaps.org · post #132, 31 January 2024
· published 2024-01-31 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Detailed reported record — unknown

Event date: 2024-01-31

GH: not reported (missing)
KH: not reported (missing)
outcome-courtship: "males chasing females" · unit unknown (reported)
outcome-stage: "no_eggs_observed" · unit unknown (reported)
pH: not reported (missing)
setup-dry_period: 4 weeks (reported)
setup-interventions: ["cool rainwater/RO changes","increased flow and aeration","heavy blackworm feeding","water from another spawning cory tank"] · unit unknown (reported)
setup-subsequent_observation: 2 weeks (reported)
temperature: not reported (missing)
water_change_percentage: not reported (missing)

horsemans-cory / breedingpersonal-anecdote

{"setup": {"conditioning_period": {"value": [3, 4], "unit": "months, approximate"}, "dry_period": "author says none required this attempt", "foods": ["blackworms", "Grindal worms", "other unspecified foods"], "weather": "author reports pressure drop and rain"}, "outcome": {"first_eggs": "mostly infertile, author assessment", "later_reported_fertilized": 203, "followup_fry_age": {"value": 3.5, "unit": "weeks, approximate"}, "surviving_count": null}}

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

ScareCrow — MTV-Kribs: eques breeding updates, page 10

www.ukaps.org · posts #188–191, 24 February 2025; #195, 27 March 2025
· published 2025-02-24 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Detailed reported record — unknown

Event date: 2025-02-22

adult_survivors: not reported (missing)
GH: not reported (missing)
hatch_count: not reported (missing)
KH: not reported (missing)
outcome-first_eggs: "mostly infertile, author assessment" · unit unknown (reported)
outcome-followup_fry_age: 3.5 weeks, approximate (reported)
outcome-later_reported_fertilized: 203 · unit unknown (reported)
outcome-surviving_count: not reported · unit unknown (reported)
pH: not reported (missing)
setup-conditioning_period: [3,4] months, approximate (reported)
setup-dry_period: "author says none required this attempt" · unit unknown (reported)
setup-foods: ["blackworms","Grindal worms","other unspecified foods"] · unit unknown (reported)
setup-weather: "author reports pressure drop and rain" · unit unknown (reported)
temperature: not reported (missing)
total_eggs: not reported (missing)

horsemans-cory / breedingpersonal-anecdote

{"setup": {"group": {"female": 2, "male": 3}, "water_changes": {"value": [30, 40], "unit": "percent per day"}, "changes": "gradual cooling and increased current; extra food"}, "outcome": {"stage": "no_confirmed_spawn_in_reviewed_posts"}}

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Gianfeli (signs Ela) — Neues Corydoras Zuchtprojekt

www.garnelenforum.de · post #1 and #7
· published 2023-04-12 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Detailed reported record — unknown

Event date: 2023-04-12

conductivity_unit: not reported (missing)
hatch_outcome: not reported (missing)
measured_temperature: not reported (missing)
outcome-stage: "no_confirmed_spawn_in_reviewed_posts" · unit unknown (reported)
pH: not reported (missing)
setup-changes: "gradual cooling and increased current; extra food" · unit unknown (reported)
setup-group: {"female":2,"male":3} · unit unknown (reported)
setup-water_changes: [30,40] percent per day (reported)

pygmy-cory / breedingpersonal-anecdote

{"setup": {"group": {"value": 8, "unit": "fish"}, "time_in_care": {"value": 2, "unit": "years, more than; per follow-up"}, "prior_attempts": "several aquaria and attempts"}, "outcome": {"stage": "juveniles", "largest_length": {"value": 1, "unit": "cm, basis unspecified"}, "age_at_size": {"value": 2, "unit": "months, almost"}, "growout_count": {"value": 70, "operator": ">", "unit": "juveniles"}}}

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Vitor Esculcas (vesculcas); tmiravent — Reprodução Corydoras pygmaeus

Detailed reported record — unknown

Event date: 2015

egg_count: not reported (missing)
food: not reported (missing)
GH: not reported (missing)
KH: not reported (missing)
outcome-age_at_size: 2 months, almost (reported)
outcome-growout_count: 70 juveniles (reported)
outcome-largest_length: 1 cm, basis unspecified (reported)
outcome-stage: "juveniles" · unit unknown (reported)
pH: not reported (missing)
setup-group: 8 fish (reported)
setup-prior_attempts: "several aquaria and attempts" · unit unknown (reported)
setup-time_in_care: 2 years, more than; per follow-up (reported)
survival_rate: not reported (missing)
temperature: not reported (missing)
water_changes: not reported (missing)

black-venezuela-cory / breedingpersonal-anecdote

{"setup": {"rearing_volume": {"value": 10, "unit": "L"}, "dimensions": {"value": [33, 15, 20], "unit": "cm"}, "substrate": "natural sand over leonardite", "filter": "external 200 L/h nominal; later replacements"}, "outcome": {"hatch_count_initial": {"value": 12, "unit": "fry, approximate"}, "reported_age_size": {"age": 4, "age_unit": "weeks", "length": 1, "length_unit": "cm head to tail, approximate"}, "later_reared_count": 10, "adult_survivors": 7}}

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

GreenNeedle (formerly Supercoley1; signs AC) — Castaway - 10Ltr Fry tank - A brutal ending

www.ukaps.org · posts #1, #4 and #13
· published 2010-04-26 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Detailed reported record — unknown

Event date: 2010-03

consistent_initial_denominator: not reported (missing)
food: not reported (missing)
GH: not reported (missing)
KH: not reported (missing)
outcome-adult_survivors: 7 · unit unknown (reported)
outcome-hatch_count_initial: 12 fry, approximate (reported)
outcome-later_reared_count: 10 · unit unknown (reported)
outcome-reported_age_size: {"age":4,"age_unit":"weeks","length":1,"length_unit":"cm head to tail, approximate"} · unit unknown (reported)
pH: not reported (missing)
setup-dimensions: [33,15,20] cm (reported)
setup-filter: "external 200 L/h nominal; later replacements" · unit unknown (reported)
setup-rearing_volume: 10 L (reported)
setup-substrate: "natural sand over leonardite" · unit unknown (reported)
water_change_schedule: not reported (missing)

pygmy-cory / breedingpersonal-anecdote

{"setup": {"group": {"value": 8, "unit": "fish"}, "tank_volume": {"value": 10, "unit": "gallons, US probable but not explicit"}, "tankmates": "species-only", "food": "frozen bloodworms and frozen tubifex once daily"}, "outcome": {"stage": "eggs_laid", "egg_count": 44, "fertility": null, "hatch_count": null}}

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

SkaleyAquatics; JuJuFish — Skaley Aquatics: The Fish Journal

Detailed reported record — unknown

Event date: 2026-01-07

fertility: not reported (missing)
fry_survival: not reported (missing)
GH: not reported (missing)
hatch_count: not reported (missing)
KH: not reported (missing)
outcome-egg_count: 44 · unit unknown (reported)
outcome-fertility: not reported · unit unknown (reported)
outcome-hatch_count: not reported · unit unknown (reported)
outcome-stage: "eggs_laid" · unit unknown (reported)
pH: not reported (missing)
setup-food: "frozen bloodworms and frozen tubifex once daily" · unit unknown (reported)
setup-group: 8 fish (reported)
setup-tankmates: "species-only" · unit unknown (reported)
setup-tank_volume: 10 gallons, US probable but not explicit (reported)
temperature: not reported (missing)

l183 / breedingpersonal-anecdote

{"evidence": [{"field": "acquired", "value": "2003-02-23", "stock": "pair", "length_cm": 12}, {"field": "tank_volume", "value": 120, "unit": "L", "approximate": true}, {"field": "unsuccessful_interval", "value": 1, "unit": "year", "approximate": true}, {"field": "initial_water", "value": {"pH": 7, "KH": 12}, "KH_unit": "degrees dH"}, {"field": "replacement_water", "value": {"pH": 6, "KH": [1, 2]}, "KH_unit": "degrees dH"}, {"field": "eventual_pH", "value": 5.5}, {"field": "temperature", "value": 28, "unit": "C"}, {"field": "hatch_time", "value": 5, "unit": "day", "approximate": true}, {"field": "first_feed", "value": 5, "unit": "days post-hatch"}, {"field": "transfer", "value": 8, "unit": "days post-hatch"}], "cave": "Bamboo tube 17×3.5 cm; wood-rich community including Panaqolus and other Ancistrus; separate filtered/aerated grow-out", "food": "Conditioning: homemade fish/seafood frozen food. Fry: spirulina, cooked lettuce, broccoli, spinach, zucchini.", "outcome": {"raised_count": ">120", "reported_losses": 1, "starting_eggs": null, "attained_size_cm": [3.5, 4], "elapsed_time": null, "repeat_interval": "~4 weeks; smaller broods", "survival_rate": null}, "notes": "Daily grow-out changes; softened water and richer feeding changed together. Text/photos explicitly copyrighted.", "identity": "Photo caption counts nine soft rays in another strain, not necessarily breeding pair."}

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Oliver Drescher — Zuchtbericht – L183

www.l-welse.com · Vorgeschichte; Zucht; Aufzucht; Anmerkungen. Article undated; review dated 2007-09-27.
· published date unknown · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Detailed reported record — unknown

Event date: not reported

acquired: "2003-02-23" · unit unknown (reported)
eventual_pH: 5.5 · unit unknown (reported)
first_feed: 5 days post-hatch (reported)
GH: not reported (missing)
growth duration: not reported (missing)
hatch_time: 5 day (reported)
initial egg count: not reported (missing)
initial_water: {"pH":7,"KH":12} · unit unknown (reported)
oxygen: not reported (missing)
replacement_water: {"pH":6,"KH":[1,2]} · unit unknown (reported)
tank_volume: 120 L (reported)
temperature: 28 C (reported)
transfer: 8 days post-hatch (reported)
unsuccessful_interval: 1 year (reported)
water-change volumes: not reported (missing)

caridina-multidentata / breedingpersonal-anecdote

Noren reports failure below 25 ppt; three of at least 200 survived four weeks at 25 ppt without metamorphosis. At 30–35 ppt he estimated 80% reached postlarvae. These are self-reported trials, not calibrated survival estimates.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Mike Noren / mikenoren — Breeding Yamato (Amano) shrimp

gabhar.wordpress.com · THE ISSUE OF SALINITY; FEEDING THE LARVAE; GROWTH; author replies 26 Jun 2018 and 7 Aug 2019
· published 2009-11-11 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Detailed reported record — unknown

Event date: not reported

duration: 28 days (reported)
failedBatchInitial: 200 larvae (reported)
failedBatchRemaining: 3 larvae (reported)
failedBatchSalinity: 25 ppt (reported)
foodDose: not reported (missing)
GH: not reported (missing)
KH: not reported (missing)
pH: not reported (missing)
replicates: not reported (missing)
salinitySuccessful: [30,35] ppt (reported)
sampleSize: not reported (missing)
stockProvenance: not reported (missing)
survivalEstimate: 80 % (reported)
TDS: not reported (missing)
temperature: not reported (missing)
waterChange: not reported (missing)

caridina-multidentata / breedingpersonal-anecdote

He fed yeast and 50–100 µm microencapsulated feeds about five times daily with incidental diatoms. Metamorphosis occurred on days 30–60. He reports two egg-batch failures when mothers were put in brackish water; later advice says pre-mix saltwater separately.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Mike Noren / mikenoren — Breeding Yamato (Amano) shrimp

Detailed reported record — unknown

Event date: not reported

duration: not reported (missing)
eggFailures: 2 batches (reported)
feedFrequency: 5 times/day (reported)
foodDose: not reported (missing)
GH: not reported (missing)
KH: not reported (missing)
metamorphosis: [30,60] days after hatching (reported)
particleSize: [50,100] µm (reported)
pH: not reported (missing)
replicates: not reported (missing)
sampleSize: not reported (missing)
stockProvenance: not reported (missing)
TDS: not reported (missing)
temperature: not reported (missing)
waterChange: "daily; volume unstated" · unit unknown (reported)

caridina-multidentata / breedingpersonal-anecdote

Authors report success at 17, 25 and 34 g/L marine salt, preferring about 25. Their 54 L diary alternates Liquizell and suspended spirulina. Twelve-hour lighting and gentle open-airline circulation were used; dense opaque green water failed in their trials.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Frank Logemann; Carsten Logemann — Amanogarnele (Caridina multidentata) – Zuchtbericht

www.garnelenhaus.de · §5.1; §5.4.1; Logemann diary days 1, 15, 18, 25–44
· published 2018-11-06 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Detailed reported record — unknown

Event date: not reported

duration: not reported (missing)
food: ["Liquizell","spirulina suspension"] · unit unknown (reported)
foodDose: not reported (missing)
GH: not reported (missing)
KH: not reported (missing)
light: 12 hours/day (reported)
pH: not reported (missing)
replicates: not reported (missing)
salinity: [17,25,34] g marine-salt mix/L (reported)
sampleSize: not reported (missing)
stockProvenance: not reported (missing)
TDS: not reported (missing)
temperature: [20,25] °C (reported)
volume: 54 L (reported)
waterChange: not reported (missing)

caridina-multidentata / breedingpersonal-anecdote

The diary changes about 30% on days 15 and 28; daily changes had been counterproductive, while some no-change batches succeeded. First transformed juveniles appear around day 25; transparent juveniles moved to freshwater on day 44 without reported losses.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Frank Logemann; Carsten Logemann — Amanogarnele (Caridina multidentata) – Zuchtbericht

Detailed reported record — unknown

Event date: not reported

duration: not reported (missing)
firstMetamorphosis: 25 days (reported)
foodDose: not reported (missing)
freshwaterTransfer: 44 days (reported)
GH: not reported (missing)
KH: not reported (missing)
pH: not reported (missing)
replicates: not reported (missing)
sampleSize: not reported (missing)
stockProvenance: not reported (missing)
TDS: not reported (missing)
temperature: not reported (missing)
transferLosses: 0 reported; denominator unknown (reported)
waterChange: 30 % on days 15 and 28 (reported)

caridina-multidentata / breedingpersonal-anecdote

Animek87 later recalled about ten metamorphosed and three freshwater survivors in 2018. A 2022 run lists 29 metamorphosed, 15 dead and 14 alive in the main tank. Salinity is written 32–35 ppm; retain that suspect unit without automatic correction.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Animek87; palcente — Amano Shrimp breeding project, page 3

www.ukaps.org · Animek87 posts #42, #44, #50, #55; palcente #56; Animek87 #57
· published 2018-10-19 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Detailed reported record — unknown

Event date: 2022-10-03

deaths: 15 individuals (reported)
duration: not reported (missing)
foodDose: not reported (missing)
GH: not reported (missing)
KH: not reported (missing)
metamorphosed: 29 individuals (reported)
pH: not reported (missing)
replicates: not reported (missing)
salinity: [32,35] ppm (reported)
sampleSize: not reported (missing)
stockProvenance: not reported (missing)
survivors: 14 individuals (reported)
TDS: not reported (missing)
temperature: [18,23] °C (reported)
transition: [5,12] hours drip acclimation (reported)
volume: 11 L (reported)
waterChange: not reported (missing)

caridina-multidentata / breedingpersonal-anecdote

palcente reports yields over 50, with an estimated 75%+ early loss, green water, no changes after setup and evaporation top-ups; at 24–25 °C metamorphosis took 4–5 weeks. Animek87 replied that his own green-water attempt died.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Animek87; palcente — Amano Shrimp breeding project, page 3

Detailed reported record — unknown

Event date: 2022-10-03

duration: not reported (missing)
earlyLoss: 75 % (reported)
foodDose: not reported (missing)
GH: not reported (missing)
KH: not reported (missing)
metamorphosis: [4,5] weeks (reported)
pH: not reported (missing)
replicates: not reported (missing)
sampleSize: not reported (missing)
stockProvenance: not reported (missing)
TDS: not reported (missing)
temperature: [24,25] °C (reported)
waterChange: "none; top-ups only" · unit unknown (reported)
yield: 50 juveniles (reported)

caridina-multidentata / breedingprimary-research

Amano larvae from one female were individually reared at 25 temperature–salinity combinations. Juvenile survival occurred at 17–34 ppt across tested 20–32 °C; higher survival was reported at 23–29 °C and 17–25.5 ppt, also 34 ppt at 26–29 °C.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Shuji Kondo; Katsuyuki Hamasaki; Shigeki Dan — Larval performance of three amphidromous shrimp species under different temperature and salinity conditions

www.jstage.jst.go.jp · pp.42–45, Materials and Methods; Fig.1 and results
· published 2021-04-01 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Detailed reported record — unknown

Event date: 2018-06-25

broods: 1 female (reported)
cultureVolume: 8 mL per larva (reported)
duration: not reported (missing)
foodDose: not reported (missing)
foodRotifers: 20 individuals/mL (reported)
foodTetraselmis: 100000 cells/mL (reported)
GH: not reported (missing)
KH: not reported (missing)
light: 14 hours/day (reported)
pH: not reported (missing)
replicates: not reported (missing)
salinitiesTested: [4.25,8.5,17,25.5,34] ppt (reported)
sampleSize: 12 larvae/combination (reported)
stockProvenance: not reported (missing)
TDS: not reported (missing)
temperature: not reported (missing)
temperaturesTested: [20,23,26,29,32] °C (reported)
waterChange: "daily transfer to fresh wells/water/food" · unit unknown (reported)

crystal-red-caridina / breedingpersonal-anecdote

After six months without breeding, The_storm reported new shrimplets weekly for three weeks after replacing a fluctuating heater; temperature then stayed 21–21.5. He used remineralized RO and varied small food portions. Temporal association does not isolate heater causality.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

The_storm — A Guide To Crystal Red Shrimp, page 6

www.ukaps.org · The_storm quoted #101; #103; #108 and #110
· published 2022-01-12 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Detailed reported record — unknown

Event date: 2022-01-29

duration: not reported (missing)
failedDuration: 6 months (reported)
foodDose: not reported (missing)
GH: 6 · unit unknown (reported)
KH: "negligible" · unit unknown (reported)
pH: not reported (missing)
recruitmentDuration: 3 weeks (reported)
replacementTDS: 130 · unit unknown (reported)
replicates: not reported (missing)
sampleSize: not reported (missing)
stockProvenance: not reported (missing)
tankTDS: 150 · unit unknown (reported)
TDS: not reported (missing)
temperature: [21,21.5] °C (reported)
topUp: "pure RO" · unit unknown (reported)
waterChange: not reported (missing)

neocaridina-davidi-trade-strains / breedingpersonal-anecdote

Anskiere’s twenty Sakura Red in 24 L showed no offspring at pH 7.5, GH/KH 10/10. After partial dilution to GH/KH 8/6 he saw greater activity and a berried female two days later. This does not prove dilution caused reproduction.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Anskiere / Jürgen; Wasser-Farben / Ute; Blues — Zuchtfrage: Neocaridina davidi (heteropoda) var. red

www.garnelenforum.de · Posts #1, #3–5 and #7 (8–10 Sep 2015)
· published 2015-09-08 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Detailed reported record — unknown

Event date: 2015-09-10

duration: 2 days between posts (reported)
foodDose: not reported (missing)
GH: not reported (missing)
initialGH: 10 · unit unknown (reported)
initialKH: 10 · unit unknown (reported)
KH: not reported (missing)
laterGH: 8 · unit unknown (reported)
laterKH: 6 · unit unknown (reported)
pH: 7.5 · unit unknown (reported)
replicates: not reported (missing)
sampleSize: 20 shrimp (reported)
stockProvenance: not reported (missing)
TDS: not reported (missing)
temperature: not reported (missing)
volume: 24 L (reported)
waterChange: not reported (missing)

neocaridina-davidi-trade-strains / breedingpersonal-anecdote

Ute reports several Neo colours breeding in tap water around GH 15/KH 7; Orange Fire imported from GH<4/KH<1 produced juveniles after gradual acclimation. Her blue shrimp’s prior KH14 breeding is supplier history, not her measured trial.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Anskiere / Jürgen; Wasser-Farben / Ute; Blues — Zuchtfrage: Neocaridina davidi (heteropoda) var. red

Detailed reported record — unknown

Event date: 2015-09-09

duration: not reported (missing)
foodDose: not reported (missing)
GH: 15 · unit unknown (reported)
KH: 7 · unit unknown (reported)
pH: not reported (missing)
replicates: not reported (missing)
sampleSize: not reported (missing)
stockLine: "Orange Fire and unspecified other Neos" · unit unknown (reported)
stockProvenance: not reported (missing)
TDS: not reported (missing)
temperature: not reported (missing)
waterChange: not reported (missing)
waterSource: "tap" · unit unknown (reported)

neocaridina-davidi-trade-strains / breedingpersonal-anecdote

jameson_uk reports three purchases of ten Bloody Mary, falling to two before a colony exceeded fifty. He diluted tap water from GH12 to GH8, dripped weekly replacement water, added mineral food, mulberry leaves and an oxydator; contributions of each change are confounded.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

jameson_uk; sciencefiction; Nick potts — Major shrimp deaths, page 5

www.ukaps.org · jameson_uk #95 (17 Nov 2020); sciencefiction #86 (12 Jul); Nick potts #90
· published 2020-07-12 · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Detailed reported record — unknown

Event date: 2020-11-17

bottleneck: 2 shrimp (reported)
duration: not reported (missing)
food: "GlasGarten Mineral Junkie; mulberry leaves" · unit unknown (reported)
foodDose: not reported (missing)
GH: 8 · unit unknown (reported)
initialGH: 12 · unit unknown (reported)
initialPurchases: 30 shrimp, three groups (reported)
KH: not reported (missing)
laterColony: 50 shrimp (reported)
pH: not reported (missing)
replicates: not reported (missing)
sampleSize: not reported (missing)
stockProvenance: not reported (missing)
TDS: not reported (missing)
temperature: not reported (missing)
waterChange: 2 L/week by drip (reported)

neocaridina-davidi-trade-strains / breedingpersonal-anecdote

sciencefiction reports eight-plus years of cherries growing from five to hundreds with approximately 70% weekly changes, plants and an oversized filter. Nick potts still had losses after reaching GH6/KH5/TDS240. Matching headline values alone did not establish cause.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

jameson_uk; sciencefiction; Nick potts — Major shrimp deaths, page 5

Detailed reported record — unknown

Event date: 2020-07-12

duration: 8 years (reported)
foodDose: not reported (missing)
GH: not reported (missing)
initialCount: 5 shrimp (reported)
KH: not reported (missing)
laterCount: "hundreds" shrimp (reported)
pH: not reported (missing)
replicates: not reported (missing)
sampleSize: not reported (missing)
stockProvenance: not reported (missing)
TDS: not reported (missing)
temperature: not reported (missing)
waterChange: 70 % weekly (reported)

neocaridina-davidi-trade-strains / breedingsecondary-summary

UF/IFAS places Blue Dream, Blue Velvet, Blue Jelly, orange/yellow sakura, Green Jade and rili under N. davidi and describes miniature hatchlings rather than an obligate saline planktonic stage. Its numeric life-history claims are secondary, laboratory-dependent context.

Reported evidence with source and stock-identity limits; this is not a verified breeding protocol or success probability.

Carrie Suen; Jennifer L. Gillett-Kaufman — Cherry Shrimp Neocaridina davidi

ask.ifas.ufl.edu · Synonymy; Description and Life Cycle; Selected References
· published date unknown · accessed 2026-10-03
Original short summary with attribution. Publisher copyright retained; no full text or media republished.

Careful evidence.
Better fishkeeping.

Located evidence

Care reports at a glance

Coverage and gaps

Author warns that eques offered by shops may instead be marked aeneus variants.

tmiravent reports never achieving reproduction of these fish, despite breeding pandas.

Hellweg uses a mature sponge filter, plants, thin sand and leaves in about 21 L, with mature breeders and male-biased groups.

He reports no need for further cooling when already at 22–25 °C and says well-fed adults leave eggs/fry alone.

JuJuFish reports unsuccessful attempts and speculates about scuds; no evidence establishes scuds as the cause.

A documented CW009 cohort had both low reported fertility and a hatchling loss before juvenile transfer.

A pygmaeus group yielded more than 70 juveniles after earlier unsuccessful attempts.

A black trade-form journal ultimately reports seven survivors to adulthood, with inconsistent earlier denominators.

A modern pygmaeus journal records 44 eggs, without a verified fry endpoint in the inspected material.

{"setup": {"group": {"female": 2, "male": 3}, "water_changes": {"value": [30, 40], "unit": "percent per day"}, "changes": "gradual cooling and increased current; extra food"}, "outcome": {"stage": "no_confirmed_spawn_in_reviewed_posts"}}

Noren reports failure below 25 ppt; three of at least 200 survived four weeks at 25 ppt without metamorphosis. At 30–35 ppt he estimated 80% reached postlarvae. These are self-reported trials, not calibrated survival estimates.

He fed yeast and 50–100 µm microencapsulated feeds about five times daily with incidental diatoms. Metamorphosis occurred on days 30–60. He reports two egg-batch failures when mothers were put in brackish water; later advice says pre-mix saltwater separately.

Authors report success at 17, 25 and 34 g/L marine salt, preferring about 25. Their 54 L diary alternates Liquizell and suspended spirulina. Twelve-hour lighting and gentle open-airline circulation were used; dense opaque green water failed in their trials.

The diary changes about 30% on days 15 and 28; daily changes had been counterproductive, while some no-change batches succeeded. First transformed juveniles appear around day 25; transparent juveniles moved to freshwater on day 44 without reported losses.

Animek87 later recalled about ten metamorphosed and three freshwater survivors in 2018. A 2022 run lists 29 metamorphosed, 15 dead and 14 alive in the main tank. Salinity is written 32–35 ppm; retain that suspect unit without automatic correction.

palcente reports yields over 50, with an estimated 75%+ early loss, green water, no changes after setup and evaporation top-ups; at 24–25 °C metamorphosis took 4–5 weeks. Animek87 replied that his own green-water attempt died.

Amano larvae from one female were individually reared at 25 temperature–salinity combinations. Juvenile survival occurred at 17–34 ppt across tested 20–32 °C; higher survival was reported at 23–29 °C and 17–25.5 ppt, also 34 ppt at 26–29 °C.

After six months without breeding, The_storm reported new shrimplets weekly for three weeks after replacing a fluctuating heater; temperature then stayed 21–21.5. He used remineralized RO and varied small food portions. Temporal association does not isolate heater causality.

Anskiere’s twenty Sakura Red in 24 L showed no offspring at pH 7.5, GH/KH 10/10. After partial dilution to GH/KH 8/6 he saw greater activity and a berried female two days later. This does not prove dilution caused reproduction.

Ute reports several Neo colours breeding in tap water around GH 15/KH 7; Orange Fire imported from GH<4/KH<1 produced juveniles after gradual acclimation. Her blue shrimp’s prior KH14 breeding is supplier history, not her measured trial.

jameson_uk reports three purchases of ten Bloody Mary, falling to two before a colony exceeded fifty. He diluted tap water from GH12 to GH8, dripped weekly replacement water, added mineral food, mulberry leaves and an oxydator; contributions of each change are confounded.

sciencefiction reports eight-plus years of cherries growing from five to hundreds with approximately 70% weekly changes, plants and an oversized filter. Nick potts still had losses after reaching GH6/KH5/TDS240. Matching headline values alone did not establish cause.

UF/IFAS places Blue Dream, Blue Velvet, Blue Jelly, orange/yellow sakura, Green Jade and rili under N. davidi and describes miniature hatchlings rather than an obligate saline planktonic stage. Its numeric life-history claims are secondary, laboratory-dependent context.