okay I am new to fish keeping and I recently purchased a 75 gallon tank and I wanted to put a green Terror a Jack Dempsey and also maybe a Texas cichlid in there what are y'all guys opinion on that please help
Assuming they don't kill each other, they should be fine. But a mature male Jack Demspey can get pretty agro so you need to add all the fish together and make sure they are the same size when you get them. And monitor them for aggression.