BETTA IMBELLIS (CUPANG ADU) this type of betta fish
Betta imbellis found in Indonesia and Malaysia which has a cylindrical body shape and has a dark green or slightly blue color, its head is elliptical and jet black. The gill fins are black transparent but that is often encountered in red gill fins. The anal fins are short and red with white edges, caudal fin and red belly and the edges of the fins are green or blue while the dorsal green or blue are decorated with black patches.
In the arena of betta imbillis complaints that are considered champions because of their ferocity when fighting. Among the complaining fans this type of fish is known as Singapore fights. This neighboring country may first introduce this fish to this type of public. when it's grown up it's only 5cm.