Ok guys I have a jack dempsey, pink convict, and a Texas cichlid in a 10 gallon growout. The jack dempsey is 2.5 in. The convict 3in. And the Texas 3in. Too. I want a red devil can you give me any advice. I know they are extremely aggro. But how big is the average male can they work in a 29 for a second growout until I get a bigger tank, thanks