
Source: Wikimedia Commons
Baryancistrus xanthellus
A medium-sized pleco with yellow spots over a dark brown body and broad yellow edging on the dorsal and caudal fins, endemic to the Xingu basin in Brazil. It demands high temperatures, strong flow and well-oxygenated water, and feeds mainly on algae.
Baryancistrus xanthellus is a loricariid catfish endemic to the Volta Grande of the Rio Xingu above the Belo Monte falls and to the Rio Iriri in Brazil. FishBase records 29.7cm total length and Wikipedia 22.4cm standard length. Juveniles carry a broad pale band along the edges of the dorsal and caudal fins, which shrinks to a small spot at the fin tips in adults; this is a key character separating it from its congeners. Seriously Fish gives 27-32C, noting it will not thrive in cooler water, with pH 6.0-8.0, 3-15dGH and a 120 x 45cm base of about 243 litres. Gut analyses of wild fish show a diet of diatoms and filamentous algae with small amounts of invertebrates such as chironomids and bryozoans. In the tank, let aufwuchs colonise surfaces for natural grazing and supplement with sinking dried foods and vegetables. The IUCN assesses it as Near Threatened.
Source: Wikipedia (CC BY-SA 4.0)
The Golden Nugget Pleco lives 8-12 years.
The Golden Nugget Pleco grows to 22-30cm.
The ideal temperature for the Golden Nugget Pleco is 27〜32℃.
Origin
South America (Volta Grande do rio Xingu and rio Iriri, Brazil)
Lifespan
8-12 years
Sources: FishBase / Seriously Fish / Wikipedia
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Baryancistrus xanthellus Rapp Py-Daniel, Zuanon & Ribeiro de Oliveira, 2011
Authority databases: FishBase
Nomenclature follows global taxonomic authority databases.
Sources: CITES Appendices (species not listed) / IUCN Red List
Regulations may change. Always verify the latest information with the relevant authorities.
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Size
22-30cm
Temperature
27〜32℃
Aufwuchs and algae, sinking vegetable-based wafers, frozen bloodworm and vegetables
Seriously Fish suggests a 120 x 45cm base of about 243 litres. Recreate a flowing river with rocks and gravel of mixed sizes plus large water-worn boulders, adding driftwood and tough plants such as Anubias. Bright lighting promotes the aufwuchs it grazes on.
Keep it warm at 27-32C; it will not thrive in cooler water. pH 6.0-8.0 and 3-15dGH. As a fish of running water it needs high oxygen levels and strong flow, and it requires a mature tank with stable water.
Juveniles are relatively peaceful, but males in particular become highly intolerant of conspecifics with age and aggressive towards any fish seen as a territorial threat. Medium to large characins that use other levels are suitable.
Wild fish eat mainly diatoms and filamentous algae with small amounts of aquatic invertebrates and bryozoans. In the tank, let algae grow on every surface except the viewing pane and supplement with sinking dried foods containing vegetable matter, frozen bloodworm, fruit and vegetables and the occasional prawn.
The possibly conspecific L081 has been bred on a single occasion. Success is likely to depend on a large tank, well-oxygenated water and an excellent diet.
It loses condition and wastes away if the temperature cannot be held high, and it settles poorly in an immature tank. The IUCN assesses it as Near Threatened in the light of the Belo Monte dam. It is not listed by CITES.
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for Golden Nugget Pleco is 27〜32℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Golden Nugget Pleco is 8-12 years. With proper care and nutrition, they can live a long and healthy life.
Golden Nugget Pleco typically reaches 22-30cm as an adult. Size may vary depending on care conditions and individual genetics.
Golden Nugget Pleco feeds on: Aufwuchs and algae, sinking vegetable-based wafers, frozen bloodworm and vegetables. Aim for a balanced diet with appropriate feeding frequency.
The price of Golden Nugget Pleco varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 17, 2026