Betta bellica the Slender Betta are the largest bubblenester of the Betta family. Their nicknames include striped fighting fish, striped fighting fish, bellicose fighting fish and the green jungle fighting fish. Betta bellica is one of two species which comprises the Betta bellica complex
. The other species is Betta simorum. According to the International Betta Congress
this species can be housed in pairs, species tanks, and community tanks. Pairs can be housed in a 20 gallon tank, groups should be housed in a 55 gallon tank or larger and should have should have soft acidic water that is well filtered kept at high 70s to low 80s F. The Bellicose fighting fish are bubblenesters. They are identified based upon the location of the specimen. The males are more intensely colored and have pointed dorsal, caudal and anal fins whereas females are rounder. B. bellica is listed on the IUCN Red List of Endangered Species
marked as least concern for Peat swamp forests are a threatened habitat; many have been converted to paddy, pineapple or oil palm plantations, or developed for some other use (Ng et al. 1994).