Separate the sexes. Convicts breed like rabbits, after a practice round or 2 they may have 100 fry each month, every month...& they will be almost impossible to rehome. I know it seems fun & exciting but it gets very old very fast. Think about it.
I'm not trying to be a buzzkill, but we had several easy to breed cichlid species that bred all the time & even though some fry died or ate each other, we could not find any places to take them within a 2 hour drive in any direction...& ours were not as prolific as convicts...be careful what you wish for