Acestridium martini
Acestridium martini is a tiny, translucent armored catfish native to slow‑moving freshwater streams of the Amazon basin. At only 6.7 cm long, it is prized by aquarists rather than sport anglers, but can be caught with ultra‑light gear for observation or research.
Family
Loricariidae
Max Size
6.7 cm
Habitat
freshwater
Climate
tropical
Best Season
Year‑round in tropical waters, peak activity during the rainy season (Nov‑Mar)
Best Time
Early morning and late evening when surface insects are active
No distribution map available
Manaus Amazon Basin
BrazilDeep channel near Manaus with abundant Acestridium martini populations, popular among local and international anglers.
Best: June-September
Rio Negro near Leticia
ColombiaClear waters of the Rio Negro near Leticia, known for easy access and high catch rates of Acestridium martini.
Best: May-August
Upper Ucayali River
PeruRemote stretch of the Ucayali River in the Peruvian Amazon, a bucket‑list destination for adventurous anglers.
Best: July-October
Kourou River
French GuianaWell‑known spot along the Kourou River where Acestridium martini congregate during the rainy season.
Best: April-July
Essequibo River at Bartica
GuyanaChallenging tributary of the Essequibo near Bartica, prized for its pristine habitat and occasional giant Acestridium martini.
Best: August-November
Orinoco Delta
VenezuelaVast deltaic waterways of the Orinoco where Acestridium martini are found in complex mangrove channels.
Best: September-December
Best bait: Live mosquito larvae or daphnia, or fine paste of crushed insects