So I have a 30 gallon tank and its been set up for some time. I used to have a pair of convicts but they got big and I decided to take them back and just switch it up. I want to switch to some africans. I was wondering how many I could put in a 30 gallon cause I would eventually like to see them breed. How hard is it to breed them? How many should I have if they breed? I do have another tank to raise fry if they do breed.