i've had him for six months now. i rescued him from a fish store. he had a severe fin rot. he'd just stay laying on a rock half of the time when i first got him. he wouldn't eat for a couple of days. finally got him to eat krill. i've been feeding him a variety of food from then on. i regulary feed him krill, squid, slicked shrimp, or silversides. he's been a pig and in great health. i'm surprised he was able to heal that fast. he doesn't rest on rocks anymore and constantly swims around. i dont know why he puffs. i've seen him puff 3 times and i caught the last one with a camera. he would just be swimming around and he'd slowly puff. i dont think he even gets spooked by his tankmates. his tankmates are 2 maroon clown, a mandarin, a green cromie, and a cleaner shrimp. man, he even goes to the cleaner shrimp to get himself cleaned up. hopefully the puffing stops. i dont have any microbubbles in my tank. i don't know what causes it.