I have one now and it is very simular to a Miniatus Grouper.I have had others as well and it seems as though a lot of them develop or have swim bladder problems.The one I have now came from a reputable wholesaler in LA and it has had a swim bladder problem ever since I first recieved him, he eats well , he just has to stay under a rock to keep from floating to the surface.But because of this his fins and scales are not the prettiest.If I had a choice afain to get another i would pass do to the high cost of this fish and the swim badder problems i have had with several, I would instead buy a Red Sea Miniatus Grouper a more striking fish in my opinion.Leave the Polleni's to there deep water reefs!!!!!!