Thanks for the reply. How many pictus cats? Are there any tetras other that those you mentioned. I will probably have to get a raphael now that you mention it.
i have used blackskirt tetras and buenos aires tetras with some degree of success with gt-sized cichlids. i have heard good thimgs about congo tetras, but once again they are not regional w/ gt. however, a full grown gt can very easily make dinner of all these fish. the problem is that a 75 or 90 isnt really large enough to keep a school of larger tetras like silver dollars in my opinion.
i would train your gt to eat pellets asap if he isnt already, and introduce some full grown tetras while the gt is still small. never offer him feeder fish if you wish to keep tetras so he doesnt get used to eating other fish. you may still end up with a mean gt though, in which case the tetras are cheap lol.
ive kept pairs of pictus successfully, but i think you could have a group of five. make sure to give them some rock ledges and caves and bog wood to hang out in.
the raphael is a great choice too. theyre a much less active fish than the pictus though.