It's worth mentioning that while mine was a juvenile it was in with a Tanganyican Tilapia which was much bigger.The emp seemed not to grow much while the tilapia was there as it was the boss of the tank but after a few years when the tilapia died,the emperor started to grow and step up as the new boss of the tank.Dom if you do get one I suggest that you get it off of feders as soon as you can,I think that contributes to slower growth....I really miss mine,guests would come over and be amazed at the size that it had grown to.I have another picture of it it my profile,you'll get more of a sense of it's size.