For the most part, it's wise to keep male bettas separate. They will battle the other person every chance they are able to if they are together. This can also be true for betta fish of opposing sexes. Unless you happen to be breeding betta fish.
Betta fish are beautiful creatures which will make very nice pets for many levels of aquarium enthusiasts. They are an easy task to maintain and they're also quite cheap to hold healthy and happy.
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visit this blog , Bettas can of course survive within the little jars they are often sold in, but this is far from a normal environment and bettas such tight quarters may fade in color and grow sluggish. Bettas have no need for a huge volume of space, but a bit room