1. Different fins: The difference between Indonesian betta and Thai betta is that the fins are different. The caudal fin, dorsal fin and pelvic fin of Indonesian betta are relatively large, and the anterior inclination angle of dorsal fin is large. Although the tail of Thai betta fish is relatively large, the pelvic fin and dorsal fin are not very large compared with Indonesian betta fish, and there is a big difference between them when put together.

2. Different colors: Most Indonesian betta fish are yellow-brown in color, and some will shine with blue luster. The color of Thai betta fish is bright and there are many kinds of colors.

3. Different origin: Indonesian betta is a new species produced by Indonesians through Thai betta, and its origin is Indonesia. Thai fighting fish is a natural species, and its origin is Thailand.

Indonesian betta fish and Thai betta fish cannot be raised together, because both of them are fierce in character and have strong territorial awareness. If two kinds of fish are raised together, there may be fights.

Their aggressiveness and attack power are also strong, and even if they can ensure sufficient living space, there will be fights. If the fight is serious, they are prone to injury or death. In addition, if two kinds of fish of the opposite sex are raised together, hybridization may occur, resulting in impure varieties of the two betta fish.