A mated pair of convicts in a 20 gallon would be fine, I have a mated pair in a 10 gallon and they are wonderful. They breed regularly and I move their when large enough to another 10 gallon to grow as feeders for my red devil and oscars.
A mated pair of convicts in a 20 gallon would be fine, I have a mated pair in a 10 gallon and they are wonderful. They breed regularly and I move their when large enough to another 10 gallon to grow as feeders for my red devil and oscars.