convicts as you probably know,can be very tough on tankmates.you could try a salvini,or maybe get a female,breeding them is cool if you never have before
or maybe the pleco is stunted... some can be really aggressive so it is a risk espeshaly in a small aquarium... firemouths andbloodparrots arenice tankmates... that is a small tank so I would not get more than 2-3 more cichlids and they have to be smaller ones that ussaly don't exeed 7 inches...Yeah it is a male convict. I kinda assumed it was a common or maybe a bulldog or something like that but again when it outgrows I'll move it. Or hopefully by then I'll have a huge tank it could live in! He is almost 5 years old so I guess he is growing an inch a year?
What other tankmates can I put in this main tank? With the addition of the convict of course