Red tailed tinfoil
(Barbonymus altus)
Image source: kobmanee | inaturalist.org
General data
Asia: Mekong and Chao Phraya basins. Recorded from the Maeklong, Peninsular and Southeast Thailand river systems.
Max length: 25 cm TL
Broad red distal margin with no black submarginal stripe along each lobe of the caudal fin; red pelvic and anal fins; a black distal blotch on the dorsal fin; the body depth 1.8-2.2 times in standard length.
Occurs at midwater depths in large and medium-sized rivers and floodplains. Feeds on various plant and animal matter. Commonly found near villages where it feeds on organic detritus disposed of by humans.
Reported to be occasionally poisonous, causing vomiting, due the fruits it eats.
Colonizes inundated forests and adults migrate back to the river in October. Young of the year follow thereafter when the water levels recede.
