I have a flowerhorn, jack demspey, and a Jag all in one tank, no problems here yet, of course they are not full grown, and they are in my 75g for now. With two pleco's. My Jag is small and is growing slowly, the flowerhorn I got at the same time as my jag and he is on steriods I think. He is huge now! I have always had y jack demspey in there, he rules the roost for now.
