I talke to my mom and she said to buy the divider for the ten gallon tank and keep two male bettas in there. I think in the long haul it will be much better for the fish and for myself. Hopefully this way they will be happier. I still haven't gotten the fish but I will at a local pet store. Hopefully they are much better than Walmart fishes. Though Neon is a walmart fish he's a trooper and he still got sick so. Anyways he's fine now and he shall b left in his 1 gallon he's happier that way the next ones will go to their separete 5 gallon half of the 10 gallon tank. I am right now still cycling the tank thankfully like a good fish mommy I am I have a spare filter machine that I'm using since the other one decided to take a break. Is good to have more thn one filter handy guys just a heads up.