actually the midas and trimac are not in the same tank. the trimac is in a divided tank because on the other side is a pair of jags that are about 5.5-6 inches and the midas is divided because on the other side of the tank is an award winning Crenicichla Frenata. the Frenata won its class at the ACA show in 2003. and I don't want them to be getting into too much of a peeing match.