I have a young male GT, around 4". He's in a 75 gallon with a school of a dozen congo tetras and he gets along just fine with them. I tried adding a small (1.5") SAE and it either jumped out of the tank or it got eaten by the GT, because it simply disappeared after being in the tank for 4 days (after it had been quarantined and seemed healthy). I'm looking for a fish mostly just to keep the drift wood rocks, and plant leaves algae-free. Also I've been thinking about adding a school of clown loaches, but I've heard mixed opinions of loaches with cichlids. I'd love to hear any input.