I am sure you can help me with this. I got three of these beautiful ciclids about a year or so ago. They were small, very engaging fish that were mis-identified as community tank dwellers!!!! They ended up eating all the other fish, growing very large, and are now spawning in the tank. They are probably 7 or 8 inches long at this point. They refuse to eat the floating cichlid foods (I have tried every brand on the market) and prefer foods that float to the bottom. They ignore fresh foods too, with the exception of frozen shrimp.
So that I can better meet their requirements, I would like to know what they are. I greatly appreciate your assistance.