>>flowerpower;3258585; said:20 gal minimum. If you grow the fry in a separate tank, you may be able to spawn them once every month or two.
im feeding them to my piranhas anyway so do you think they will breed and then im going to feed them when they get bigger cuz i need a fish that i can breed for my piranhasseangtat2kc;3258593; said:10 gallon would be a little small. It would work as a house for the juveniles. Think about finding a 55 gallon cheap on craigslist. Divide it and through two pairs in the tank. You can expect about 50 fish to survive. Transfer them into a smaller tank and the convict will spawn again. The fry grow slow so multiple schools are needed to have a constant source of food(for feeders).