I would be careful about the female betta the other fish could either stress it out or the other fish could nip its fins even though it has shorter fins then male bettas there is still a possibility. Also your female betta could chase and kill the other fish but it all depends on the bettas...
I do not think feeding 4 pellets is actually overfeeding and also I would not put other fish in the tank with the betta either. They are usually territorial but most of it depends on the fish itself, also there are a lot of fish that will nip at the bettas fins, and putting other fish with the...
I know this may be late but could you please not say the dog is a pitbull unless you are 100% sure it is, because its making them look bad and there are a lot of dogs that look like pitbulls and Im pretty sure you did not mean it that way.