elly

Thanks. Would it be OK to put a female molly and a female platy in there, seeing as they're all livebearers? Or would two female mollies be better?

I've been having some problems with fish getting attacked in my tank. It started when I brought a new three spot gourami and a male sailfin molly home, and they bit all the fins off my fighter and killed him. So I took the molly back, but after a while the same happened to my male guppy. The other day I bought a new male guppy, and the same has happened to him too. At first I thought it was the three spot gourami, but (after putting him in isolation) when I watch the tank my male sailfin keeps chasing my female guppy with his fin stretched out. I'm confused, because I always thought guppies and mollies are fine together. Could it be because my sailfin is the only male and he needs a female? My tank is 24", and it's not overcrowded because I recently moved from a smaller tank into a larger one and haven't bought any other fish. I also have 2 clown loaches, 5 neon tetra, a corydoras catfish and a male and a female guppy. Help would be appreciated before I go and buy some more fish/take my gourami back to the store! I'm not enjoying coming home to find dead finless fish! (Also, sorry if this is in the wrong place, I'm new here. I figured it's about livebearers, so..)