So, things have changed up a bit. Taco is no longer in a 10 gallon by himself, but now shares it with 3 other betta's. Well, seperated, that is. I divided the tank, so each betta gets 2.5 gallons to himself.
This isn't permanent, only temporary. I had a 20 gallon and was going to split it 4 ways like this, so everyone each got 5 gallons, until I realized the tank had a leak. So I gave it away to a guy to use for his lizard. So, I went ahead and divided the 10 gallon, until I get around to getting another 20 gallon. So far they seem to be loving it, it's filtered and heated.
Thai
Taco
Tuna
Tony
Taco (Left) and Thai (Right)
Tony (Left) and Tuna (Right)
Tony
Taco
Thai
Tuna