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Website build 67358e1 • updated Oct 11, 2026, 1:12 AM EDT

FPB / SPECIES EVIDENCE

Careful evidence.
Better fishkeeping.

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

Bounded research coverage
Catalog subjects: October 2, 2026
See current availability

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.

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Located evidence

597 matching reports

Located reports and recommendations with attribution.

Care reports at a glance

No care report appears on this results page. We do not fill parameters from adjacent species.

Disagreements and qualifications

internal_database_status_conflict

{"conflict_id": "conf-l136c-breeding-field", "kind": "internal_database_status_conflict", "claim_ids": ["clm-l136c-planetcatfish-breedingfield-domesticAncistrus", "clm-l136c-planetcatfish-breedingfield-l144", "clm-l136c-planetcatfish-breedingfield-l306", "clm-l136c-planetcatfish-breedingfield-l519", "clm-l136c-planetcatfish-breedingfield-l136c", "clm-l136c-planetcatfish-reportcount-domesticAncistrus", "clm-l136c-planetcatfish-reportcount-l144", "clm-l136c-planetcatfish-reportcount-l306", "clm-l136c-planetcatfish-reportcount-l519", "clm-l136c-planetcatfish-reportcount-l136c"], "resolution": "stale_or_inconsistent_field", "impact": "Do not infer no captive breeding from the database's unreported field."}

Unresolved; preserve exact source scope and disagreement.

species_boundary_uncertainty

{"conflict_id": "conf-l136c-taxonomy", "kind": "species_boundary_uncertainty", "claim_ids": ["clm-l136c-codex-scope-domesticAncistrus", "clm-l136c-codex-scope-l144", "clm-l136c-codex-scope-l306", "clm-l136c-codex-scope-l519", "clm-l136c-codex-scope-l136c", "clm-l136c-codex-margaritatus-domesticAncistrus", "clm-l136c-codex-margaritatus-l144", "clm-l136c-codex-margaritatus-l306", "clm-l136c-codex-margaritatus-l519", "clm-l136c-codex-margaritatus-l136c"], "resolution": "retain_trade_form", "impact": "cf. margaritatus is a hypothesis; preserve C-pattern trade identity and pedigree uncertainty."}

Unresolved; preserve exact source scope and disagreement.

citation_year_discrepancy

{"conflict_id": "conf-l136c-datz-date", "kind": "citation_year_discrepancy", "claim_ids": ["clm-l136c-criticalmass-date-domesticAncistrus", "clm-l136c-criticalmass-date-l144", "clm-l136c-criticalmass-date-l306", "clm-l136c-criticalmass-date-l519", "clm-l136c-criticalmass-date-l136c"], "resolution": "original_pdf_pending", "impact": "C-specific DATZ reference link ends 1994-7, whereas listing says all forms appeared in 1993. Do not silently harmonize."}

Unresolved; preserve exact source scope and disagreement.

superseded_historical_assertion

{"conflict_id": "conf-l306-historical-no-breeding", "kind": "superseded_historical_assertion", "claim_ids": ["clm-l306-2009-failure-historical-domesticAncistrus", "clm-l306-2009-failure-historical-l144", "clm-l306-2009-failure-historical-l306", "clm-l306-2009-failure-historical-l519", "clm-l306-2009-failure-historical-l136c", "clm-l306-walters-2016-father-domesticAncistrus", "clm-l306-walters-2016-father-l144", "clm-l306-walters-2016-father-l306", "clm-l306-walters-2016-father-l519", "clm-l306-walters-2016-father-l136c", "clm-l306-tanke-talk-bred-domesticAncistrus", "clm-l306-tanke-talk-bred-l144", "clm-l306-tanke-talk-bred-l306", "clm-l306-tanke-talk-bred-l519", "clm-l306-tanke-talk-bred-l136c"], "resolution": "later_success_reports_exist", "impact": "2009 respondent's knowledge state is not a current absence claim."}

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

Unresolved; preserve exact source scope and disagreement.

domestic-ancistrus / breedingpersonal-anecdote

Snow Whites were kept as cool as 22°C.

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

Mark Walters — Colour and forms of Common Ancistrus

www.catfishstudygroup.org · p.21
· 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

measurement
22 °C_lower_observed (reported)
l144 / breedingpersonal-anecdote

Snow Whites were kept as cool as 22°C.

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

Mark Walters — Colour and forms of Common Ancistrus

www.catfishstudygroup.org · p.21
· 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

measurement
22 °C_lower_observed (reported)
l136c / breedingpersonal-anecdote

Author considers very low hardness favorable for breeding.

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

Haakon Haagensen (site author) — Hypancistrus cf. margaritatus L136 / L158

catfishcodex.com · Final paragraph
· 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

measurement
not reported · unit unknown (reported)
l136c / breedingpersonal-anecdote

General L136 discussion warns of female injury or death during trapping.

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

Haakon Haagensen (site author) — Hypancistrus cf. margaritatus L136 / L158

catfishcodex.com · Sexing/aggression paragraph
· 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

measurement
not reported · unit unknown (reported)
l136c / breedingauthor-hypothesis

Possible identity with H. margaritatus is proposed, not established.

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

Haakon Haagensen (site author) — Hypancistrus cf. margaritatus L136 / L158

catfishcodex.com · After variation paragraph
· 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

measurement
not reported · unit unknown (reported)
l136c / breedingpersonal-anecdote

Author says A-pattern parents can yield other L136 patterns.

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

Haakon Haagensen (site author) — Hypancistrus cf. margaritatus L136 / L158

catfishcodex.com · After maximum size
· 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

measurement
not reported · unit unknown (reported)
l136c / breedingpersonal-anecdote

Author treats C as a large-spotted L136 form.

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

Haakon Haagensen (site author) — Hypancistrus cf. margaritatus L136 / L158

catfishcodex.com · Opening paragraphs; Facts
· 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

measurement
not reported · unit unknown (reported)
l136c / breedingexpert-recommendation

General L136 guidance uses 27–30°C.

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

Haakon Haagensen (site author) — Hypancistrus cf. margaritatus L136 / L158

catfishcodex.com · Husbandry paragraph
· 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

measurement
{"min":27,"max":30} °C (reported)
l136c / breedingpersonal-anecdote

Listing associates all three patterns with the 1993 introduction.

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

Critical Mass Biophilia (individual writer not identified) — Hypancistrus sp. L136C

www.criticalmassbiophilia.com · Identity paragraphs
· 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

measurement
1993 year (reported)
l136c / breedingpersonal-anecdote

Listing is described as seller-bred offspring.

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

Critical Mass Biophilia (individual writer not identified) — Hypancistrus sp. L136C

www.criticalmassbiophilia.com · Own-breeding paragraph
· 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

measurement
not reported · unit unknown (reported)
l136c / breedingpersonal-anecdote

Seller says breeding group came from Marcel Wuethrich.

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

Critical Mass Biophilia (individual writer not identified) — Hypancistrus sp. L136C

www.criticalmassbiophilia.com · Own-breeding paragraph
· 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

measurement
not reported · unit unknown (reported)
Detailed reported record — unknown

Event date: not reported

cohortContext
{"setting":"captive aquarium","stock_identity":"keeper/trade identification; unverified against catalog animals","sample_independence":"see dependencies; repeated broods are not independent keepers","reporter":"Critical Mass Biophilia","commercial_interest":true,"pedigree_verified":false} · unit unknown (reported)
cohortEndpoint
"juvenile_offspring_claimed" · unit unknown (reported)
l136c / breedingpersonal-anecdote

Retrieved listing marked offspring growing out and sold out.

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

Critical Mass Biophilia (individual writer not identified) — Hypancistrus sp. L136C

www.criticalmassbiophilia.com · Breeding Status; purchase area
· 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

measurement
not reported · unit unknown (reported)
l136c / breedingpersonal-anecdote

Breeding field says unreported.

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

PlanetCatfish contributors — Hypancistrus sp. (L136C) Cat-eLog

www.planetcatfish.com · Breeding field
· 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

measurement
not reported · unit unknown (reported)
l136c / breedingexpert-recommendation

Genus-based advice emphasizes frequent small meaty meals.

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

PlanetCatfish contributors — Hypancistrus sp. (L136C) Cat-eLog

www.planetcatfish.com · Feeding field
· 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

measurement
not reported · unit unknown (reported)
l136c / breedingpersonal-anecdote

Same page links one breeding report.

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

PlanetCatfish contributors — Hypancistrus sp. (L136C) Cat-eLog

www.planetcatfish.com · Breeding Reports field
· 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

measurement
1 report (reported)
l136c / breedingpersonal-anecdote

Database lists 100 mm standard length.

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

PlanetCatfish contributors — Hypancistrus sp. (L136C) Cat-eLog

www.planetcatfish.com · Species Information
· 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

measurement
100 mm_SL (reported)
l136c / breedingpersonal-anecdote

Keeper reports new L136C hatchlings moving.

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

Warm-Frame-2848 — Babies

www.reddit.com · Opening post
· 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

measurement
not reported · unit unknown (reported)
Detailed reported record — unknown

Event date: not reported

cohortContext
{"setting":"captive aquarium","stock_identity":"keeper/trade identification; unverified against catalog animals","sample_independence":"see dependencies; repeated broods are not independent keepers","reporter":"Warm-Frame-2848","possibly_same_cohort_as":"obs-l136c-warmframe-trap","same_cohort_confirmed":false,"image_not_inspected":true} · unit unknown (reported)
cohortEndpoint
"hatchlings_claimed" · unit unknown (reported)
l136c / breedingpersonal-anecdote

Keeper reports that their L136C are finally breeding.

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

Warm-Frame-2848 — L136c trapping

www.reddit.com · Opening post
· 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

measurement
not reported · unit unknown (reported)
Detailed reported record — unknown

Event date: not reported

cohortContext
{"setting":"captive aquarium","stock_identity":"keeper/trade identification; unverified against catalog animals","sample_independence":"see dependencies; repeated broods are not independent keepers","reporter":"Warm-Frame-2848","image_not_inspected":true} · unit unknown (reported)
cohortEndpoint
"trapping_or_courtship_claim" · unit unknown (reported)
l306 / breedingpersonal-anecdote

Four examined specimens consistently had five trunk bars.

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

Milton Tan; Lesley S. de Souza; Jonathan W. Armbruster — A new species of Panaqolus (Siluriformes: Loricariidae) from the rio Branco

www.researchgate.net · Abstract
· published 2016-07-07 · 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

measurement
{"specimens":4,"bars":5} · unit unknown (reported)
l306 / breedingpersonal-anecdote

Diagnostic pattern combines body bars, banded fins and distinctive head lines.

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

Milton Tan; Lesley S. de Souza; Jonathan W. Armbruster — A new species of Panaqolus (Siluriformes: Loricariidae) from the rio Branco

www.researchgate.net · Abstract/diagnosis
· published 2016-07-07 · 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

measurement
not reported · unit unknown (reported)
l306 / breedingpersonal-anecdote

Description is based on Takutu River and mainstem Branco material.

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

Milton Tan; Lesley S. de Souza; Jonathan W. Armbruster — A new species of Panaqolus (Siluriformes: Loricariidae) from the rio Branco

www.researchgate.net · Abstract; type material
· published 2016-07-07 · 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

measurement
not reported · unit unknown (reported)
l306 / breedingpersonal-anecdote

Tanke reports finding wild habitats and breeding L306 at home.

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

Andreas Tanke — Introduction and breeding report of Panaqolus claustellifer (L 306)

en.amazonoco.de · Introductory paragraphs
· 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

measurement
not reported · unit unknown (reported)
Detailed reported record — unknown

Event date: not reported

cohortContext
{"setting":"captive aquarium","stock_identity":"keeper/trade identification; unverified against catalog animals","sample_independence":"see dependencies; repeated broods are not independent keepers","reporter":"Andreas Tanke","full_talk_not_reviewed":true} · unit unknown (reported)
cohortEndpoint
"breeding_claim_unspecified" · unit unknown (reported)
l306 / breedingpersonal-anecdote

Talk abstract does not publish spawning parameters or outcome counts.

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

Andreas Tanke — Introduction and breeding report of Panaqolus claustellifer (L 306)

en.amazonoco.de · Introductory paragraphs
· 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

measurement
not reported · unit unknown (reported)
l306 / breedingpersonal-anecdote

Cool changes, temperature cycling and rearranging caves did not produce reported spawning.

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

Electronic-Shrimp — Need help with L306 (Panaqolus claustiffer) – Breeding group won't spawn after over a year, tried everything

www.reddit.com · Triggering; Scaping & Caves
· 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

measurement
not reported · unit unknown (reported)
l306 / breedingpersonal-anecdote

No spawning for over one year after transfer.

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

Electronic-Shrimp — Need help with L306 (Panaqolus claustiffer) – Breeding group won't spawn after over a year, tried everything

www.reddit.com · Opening post paragraphs 2–3
· 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

measurement
{"lower_bound":1} year (reported)
Detailed reported record — unknown

Event date: not reported

cohortContext
{"setting":"captive aquarium","stock_identity":"keeper/trade identification; unverified against catalog animals","sample_independence":"see dependencies; repeated broods are not independent keepers","reporter":"Electronic-Shrimp","chemistry_basis":"Hamburg water supplier rather than aquarium measurement"} · unit unknown (reported)
cohortEndpoint
"no_spawn_over_one_year" · unit unknown (reported)
l306 / breedingpersonal-anecdote

Weekly rotation included vegetables, mussel food, low-protein tabs and one fasting day.

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

Electronic-Shrimp — Need help with L306 (Panaqolus claustiffer) – Breeding group won't spawn after over a year, tried everything

www.reddit.com · Monday–Sunday feeding list
· 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

measurement
not reported · unit unknown (reported)
l306 / breedingpersonal-anecdote

Supplier reports GH 8.75°dH.

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

Electronic-Shrimp — Need help with L306 (Panaqolus claustiffer) – Breeding group won't spawn after over a year, tried everything

www.reddit.com · Water parameters paragraph
· 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

measurement
8.75 °dH (reported)
l306 / breedingpersonal-anecdote

Supplier reports KH 9.2°dH.

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

Electronic-Shrimp — Need help with L306 (Panaqolus claustiffer) – Breeding group won't spawn after over a year, tried everything

www.reddit.com · Water parameters paragraph
· 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

measurement
9.2 °dH (reported)
l306 / breedingpersonal-anecdote

Tank temperature, volume, sex count and maturity were not supplied.

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

Electronic-Shrimp — Need help with L306 (Panaqolus claustiffer) – Breeding group won't spawn after over a year, tried everything

www.reddit.com · Opening post
· 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

measurement
not reported · unit unknown (reported)
l306 / breedingpersonal-anecdote

Bought as German-bred stock from a reportedly successful local breeder.

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

Electronic-Shrimp — Need help with L306 (Panaqolus claustiffer) – Breeding group won't spawn after over a year, tried everything

www.reddit.com · Opening post paragraph 2
· 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

measurement
not reported · unit unknown (reported)
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