What are Betta's tankmates?
if you're talking about the safety of a male betta (the kind with long, flowing fins) with other fish in your tank...male bettas WILL attack most fish of similar size and appearance. But ive seen bettas go after fancy goldfish the size of tennis balls.also, be warned that a male betta is an easy target of fin nippers. the worst fin nippers are generally schooling fish like tetras and especially tiger barbs. ive also had bad expieriences with danios. when a bettas tail is bitten, his delicate fins can be ruined by painful fin rot. And he may fight back, especially if the nipper is smaller than him.female bettas are usually fine in a community tank. but, to be on the safe side, i would keep a male betta in a separate tank, maybe five gallons. you can really show them off that way.but in case you're curious, no, bettas don't really have natural enemies in the wild, just male-to-male fights.