FPB / SPECIES EVIDENCE

Careful evidence.
Better fishkeeping.

Read what keepers observed, what authors recommend, and where the evidence leaves questions open.

Keeper reports are attributed experiences. They do not establish species identity, independent replication, biological causes or a guaranteed breeding method. Trade labels and missing measurements remain unresolved.

Species, L-number or observation

Research subject

Topic

Evidence type

Source

Reported outcome

Published on or after

Published on or before

Reset filters

Located evidence

597 matching reports

Located reports and recommendations with attribution.

Care reports at a glance

replacement_water_temperature: {"min":21,"max":22} [degC] Read citation and limits

temperature_recommendation: {"min":26,"max":30} [degC] Read citation and limits

diet: Frozen and dry foods; limited raw potato, carrot or zucchini Read citation and limits

Disagreements and qualifications

L471 identity

Names and sizes alone cannot authenticate stock; exporter mislabelling explicitly reported.

Require stock provenance; no forced taxonomic merge

L471 maximum size

Approximately 6,7 and 8 cm statements refer to differing wild/captive contexts and revised estimates.

Retain measurement basis unknown; no universal maximum

L333 water chemistry

Accounts vary: pH 6.8–7.0, 7.5 and 6.5; one report had KH 6/GH 15 in source degree notation.

Do not require uniformly soft acidic water based on anecdotal pooling

L333 triggers

Water-change, conductivity and darkness associations are uncontrolled; S04 reports softening did not improve spawning.

Describe as keeper observations, not reliable triggers

Egg and survival counts

Oocytes, eggs and surviving juveniles are different endpoints. No retained report supports a controlled survival percentage.

Keep endpoint types and denominator missingness

L333 hatch timing

Cocker explicitly did not time hatching. Nancy supplies generalized 5–7 days without dated measured cohort.

Not independently corroborated measured hatch range

L471 breeding coverage

Historic success, approximate egg diameter and small clutches are indirect; no verified exact temperature/pH/KH/GH/hatch/survival cohort.

Mark insufficient evidence; do not fill from other Hypancistrus

anatomical_term_correction

GaryE corrected pectoral to pelvic; the correction does not validate sex

Unresolved attribution/identity or dated endpoint; no silent reconciliation, causal inference or survival rate.

Coverage and gaps

This is a growing index of selected public sources. Shared authors, copied pages and overlapping cohorts do not count as independent corroboration. Date, unit, taxon, denominator and endpoint gaps remain visible in the reports.

Human-origin judgments rely on attribution and source evidence; no reliable AI detector is claimed. This library republishes original limited summaries and attribution, with no publisher full text or media.

Suggest a source or report a correction

Careful evidence.
Better fishkeeping.

Located evidence

Care reports at a glance

Coverage and gaps

replacement_water_temperature: {"min":21,"max":22} [degC]

hatch_time: {"min":5,"max":7} [days] — No dated cohort or denominator

post_hatch_yolk_period: 5 [days]

fry_advice: Rearing box or tank; shelter; meat and vegetable components

growth_claim: {"size":[3.5,4.5],"time":6} [cm_at_months] — Length basis not specified here

received_origin_claim: Rio Ventuari, Venezuela — Collection chain not independently verified

wild_fish_size: Hardly exceed 6 [cm_unspecified_length_basis]

offspring_size: About 8 [cm_unspecified_length_basis] — German parallel version explicitly means approximately 8 cm; not an observed cohort

temperature_recommendation: {"min":26,"max":30} [degC]

filtration: Good filtration

diet: Frozen and dry foods; limited raw potato, carrot or zucchini

reproduction: Cave-breeding

source_label: Hypancistrus sp. L201 Dwarf

historical_trade_labels: ["L471","L201 Dwarf","L280a","L280b"] — Not nomenclatural synonyms

import_history: Neonfisken, Denmark, around 2011; small-/large-spotted labels

identity_warning: L280 belongs to H. vandragti; H. contradens also sold as L471

size: 7 [cm_unspecified_length_basis]

temperature_recommendation: {"min":27,"max":30} [degC]

water_advice: Soft, slightly acidic, oxygenated; filtration and frequent changes

shelter_advice: Rocks, wood and size-matched caves

breeding_injury_warning: Females may be injured or killed during cave trapping — No event count or direct personal cohort specified

identity_claim: Discussed imported fish interpreted as H. contradens — Not independently examined

taxonomic_opinion: Author suspected L471, L201 and H. contradens conspecific — Not formal synonymy

historic_breeding: Successful Scandinavian reproduction reported in quoted DATZ text

egg_diameter: 5 [mm_approximate]

clutch_size: Few eggs — No numeric count

juvenile_growth: Slow

size_revision: Earlier maximum size later revised upward

Sex remains unresolved; black pelvic fins were keeper-reported. Respondents disagreed and qualified their experience.

The keeper isolated the aggressive fish.