I am unsure what would make good tank mates for one. We are being given a ten gallon. In the past I had a male in with some mollies, I know for a fact he kept eating the fry from the mollies. Was that wrong? I was never told it was and he lived for almost 2 years before we had a black out and water main break simultaneously that went on for over 2 weeks and killed all the fish. That was about 6 years ago. I considered maybe some females but have read they might be agressive to each other. Would Cory cats be ok? Swords? Neon tetras? Suggestions? Many thanks!

If you buy a female, groups of female bettas in odd numbers will do fine together.
Mollies like brackish water, so i'd stay away from those.
Cory cats and swords I have no idea about them.
However, Neon tetras are great, and African Dwarf frogs are better. (ADF)

If I was in your situation, I would go through with the female betta idea and get:

3 female bettas
2 ADF'S
10 Neon Tetras
And a snail or two of your choice for cleanup duty, and algae duty. (I suggest Malaysian Trumpet Snails )

__________________
75 gallon:
8 Black skirt tetras
5 Red minor Tetras
5 neon tetras
2 Angelfish
1 8" Hi Fin Spotted Pleco
6 cory cats (emerald, spotted, albino)
3 amazon puffers

2.5 gallon:
Male Betta!

150 gallon saltwater:
In the works!

That's odd, my mother raised Mollies for years. Constantly giving away fry and hers were in fairly neutral water. I remember every four months having to devide the tank as there were so many fish you could barely see the water. She tried to only have 6 mollies in a ten but could never get just males or just females. lol!

The idea of the frogs is a no go for us. We don't like frogs. Glad to hear the tetras would work though. I don't think I would put ten with 3 feamle bettas in a ten gallon. Thats the size tank we would start with. Honest with 3 female bettas I think we could only do 5 neons, don't you think? I also don't like snails. The only ones around here are mystery snails and they are actually illegal, I just can't get the chain stores to believe it.

Maybe I'll look into a little all in one for a male betta and use the ten for other fish. Thanks!

Yeah mollies can be kept in freshwater but they prefer brackish water. At least that's what everyone tells me haha. Neon tetras I don't know the exact fish to gallon ratio, but 48 neons will fit in a 20 gallon. But yeah, final decision is yours, not mine. And wow, snails are illegal? Learn something new every day I guess!

__________________
75 gallon:
8 Black skirt tetras
5 Red minor Tetras
5 neon tetras
2 Angelfish
1 8" Hi Fin Spotted Pleco
6 cory cats (emerald, spotted, albino)
3 amazon puffers

2.5 gallon:
Male Betta!

150 gallon saltwater:
In the works!

I am in favor of your last comment: male betta alone and get other fish for the 10 gal.

I have tried to put neons and red minor tetras with bettas. I even tried different bettas with the same tetras. It is always the tetras picking on the bettas fins that makes me remove the betta to the safety its solitary home.

Thanks guys. Yeah I will get a $20 all in one 2 gal for my betta, I prefer males over most females. Although I saw a gorgeous female on aquabid I just might dig up the money for. White body, blue on the head and red fins LOVELY! I think she was a halfmoon too.

Fish to gallon ratio that I have read just about everywhere is one inch per gallon. Since I actually enjoy fussing over my tank I think I can get away with a little more than that.