Hey all, yesterday we acquired a purple tang that we were told “possibly has a swim bladder issue.” He kind of bobs up and down, swims sideways, and drags the lower part of his body when he is swimming. He seems fine otherwise. Color looks good, no visible ich, fins look fine, etc. I attached a video for reference. Does this appear to be a swim bladder issue? Does it correct itself eventually? Any insight is much appreciated. Thanks!