Ancistrus cf. cirrhosus
The bristlenose pleco is one of the most popular small loricariids: adults stay manageable compared to common plecs and are widely bred in captivity. Mature males develop fleshy tentacles on the snout. They graze algae, aufwuchs, and biofilm and benefit from driftwood and stable water quality. Generally peaceful toward tankmates but males may squabble over caves; provide multiple hiding spots and a mature tank with surfaces to browse.
Algae wafers, sinking herbivore pellets, blanched vegetables; supplement with occasional protein (frozen invert foods) for breeding condition.
Frequency: Daily
Do not rely on algae alone—offer varied sinking foods so fish do not starve in very clean tanks.
Native Region: South America (Amazon and Orinoco basins—trade stock often line-bred)
Leafy streams and flooded zones with wood and moderate flow.
Driftwood for grazing; rounded rocks and caves; good filtration and regular water changes.
Activity Level: Moderate
Mostly nocturnal or crepuscular; hides by day unless well settled. Territorial with similar plecos over best caves.
Difficulty: Moderate
Type: Cave spawner
Sexual Dimorphism: Males develop bristles on snout; females rounder when gravid.
Male guards eggs in cave or tube; remove other plecos if eggs are eaten; soft acidic water often used for spawning.
Substrate: Either
Plant Safe: Yes
Driftwood essential; PVC or ceramic caves for breeding.
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