Hemiancistrus subviridis
Hemiancistrus subviridis, known as the green pleco, is a small, armored catfish native to South American freshwater rivers. It’s popular among aquarists for its striking green coloration and algae‑grazing habits, but it’s not a typical food fish.
Family
Loricariidae
Max Size
15 cm
Habitat
freshwater
Climate
tropical
Best Season
Year‑round, with peak activity during the rainy season (May‑October) when water levels rise
Best Time
Night to early dawn, when catfish are most active
No distribution map available
Xingu River
BrazilKnown for abundant Hemiancistrus subviridis in rapids and rocky substrates of the Xingu near Altamira.
Best: June-September
Rio Negro
BrazilBlack‑water river near Manaus with plentiful leaf‑litter habitats favored by Hemiancistrus subviridis.
Best: August-November
Madre de Dios River
PeruClear tributary streams near Puerto Maldonado host dense populations of the species.
Best: May-September
Tapajós River
BrazilFast‑flowing sections with rocky outcrops provide ideal conditions but require advanced handling.
Best: July-October
Upper Ucayali River
PeruLarge river system with seasonal floodplains where Hemiancistrus subviridis is regularly encountered.
Best: June-August
Amazon River (Iquitos region)
PeruMain channel backwaters near Iquitos are a reliable hotspot for the species.
Best: May-September
Best bait: Live earthworms or bloodworms