So this student at the school I teach knows I keep fish. He calls me today and says he caught a cool 8 inch yellow perch and he wants to give him to me. I had a 55 gallon tank in my garage with a single 7 inch texas cichlid in it so I told him he could come drop it in. He is a very cool looking fish. So the question is, can I keep a yellow perch with cichlids? I have several tanks that vary in aggression level. Can yellow perch thrive in 76-78 degree water? Is this a realistic idea to keep him? I would like to put him in my 125 with some bigger cichlids.