Fred, I know sea bass lay on their side, vertical and in crevaces/holes ect. But, I have a young seabass in my tank caught in a minnow trap last year that is growing but acting like a flounder. It routinely plunges itself into the gravel and exposes only its mouth and one eye and stays like that for awhile. For the minority part of the time it takes refuge under seaweed and is quite shy. Is this normal behavior for a sea bass? I have never heard of such a thing for a seabass to play flounder.