Betta

[AtolSammeek]

How many bettas can you have in a 100 gal tank

[AdvntrLady]

Hi there! I noticed your post was a few days old so I thought I'd try and help you out even though I don't have any Bettas at the moment! You can only put one male in any tank no matter what the size. As far as females go, for any fish a good rule of thumb (although it's highly debated!) is 1 inch of fish at it's full grown size per gallon of water. Don't know how much this helped but have fun with your Bettas!

[Jaypoot]

if you breed bettas, you might be able to get away with placing maybe 5 male bettas as long as they are not to aggressive and have not been separated since birth, they will fight a little bit, but mostly for territorial reasons...if you want them to keep their fins, only keep one. female bettas can be kept as many as you want buddy.