Balantiocheilos melanopterus (Bleeker, 1850)
Tricolor sharkminnow
Silver shark
Balantiocheilos melanopterus
photo by Jean-Francois Helias / Fishing Adventures Thailand

Family:  Cyprinidae (Minnows or carps), subfamily: Cyprininae
Max. size:  35 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater; pH range: 6 - 8; dH range: 5 - 12
Distribution:  Asia: Mekong and Chao Phraya basins, Malay Peninsula, Sumatra and Borneo. Becoming rare or extinct in many river basins.
Diagnosis:  Silver body with black margins on dorsal, caudal, anal and pelvic; lower lip with a posterior groove forming a pocket opening backwards (Ref. 43281).
Biology:  Found in midwater depths in large and medium-sized rivers and lakes. Feeds on phytoplankton, but mostly on small crustaceans, rotifers as well as insects and their larvae (Ref. 12693). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size >150 cm (Ref. 51539).
IUCN Red List Status: Vulnerable (VU); Date assessed: 07 February 2019 (B2ab(i,ii,iii)) Ref. (130435)
Threat to humans:  harmless
Country info:  Occurs in Maeklong, Chao Phraya and Mekong basins (Ref. 26336); also from Nonthaburi, Phra Nakhon Si Ayutthaya, Nakhon Sawan, Chai Nat, Uthai Thani and Kemarat (Ubon Ratchathani) (Ref. 37773). Controlled reproduction for the ornamental fish trade (Ref. 6459). Also Ref. 1632, 2091, 4537, 26580, 36654, 43281.


Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.