OK im not totally positive its a perch but i picked up what i think to be a perch from my store.....(i work at a Petco) It was in my feeder tank with the rosy red minnows.... i noticed him and took him home.......he has cichlid markings on his cheeks and is a bronze-gold colour.....unfortunatly i dont have any pics but i just wanna know, how large a tank would it require if it is a perch? would it need a heater? thanks for the help all!