The Siamese Fighting fish is a complicated fish and should not be purchased on a whim. The name suggests that they are an aggressive species, but this is certainly not always the case.
Siamese fighters are hardy, full of character, and are peaceful to most other fish. They do not seem to enjoy open spaces, preferring densely planted areas of the tank. An ideal environment would be a small aquarium with a lot of plants and a few peaceful tank mates.
Special Requirements – They are relatively easy to keep and are very hardy once settled, providing that they are not being bullied.
Tanks Mates and Compatibility – If you stock 2 male fighters together then all hell will break loose and you will end up with one battered fighter and the other one will probably be dead. They can also be aggressive to other long-finned tank mates. However, usually, if housed with standard community fish, they pose no threat at all. In fact, they can be prone to having their beautiful fins nipped and this is often more of a problem. They can also be prone to stress if they are perpetually being nipped.