I have 3 Bluegills in with 6 Red-eared Sunfish for a year and a half. They were only 2-3 inches when I got them, but now the largest is about 7 inches and the rest in various sizes. They get along well. A lot of fake fighting to defend territory, but not much real contact. They've gotten really dark. Not much color, but I don't care about that, as this is a North American biotope setup. I'm moving them from the 90 they grew up in to a new 215 we just set up. In with them will be some Golden Shiners and a large crayfish. Plants will be water lilies and other native plants. (I had a pickerel in with them, but they eat faster then the pickerel so I ended up feeding him out of a net.)
