No he behaves himself. For the last 5 years or so my main interest has been in keeping lionfish, scorpionfish, anglers... and various other ambush predators. That lion is a dwarf zebra and he's always been a model citizen, even now that he's the only lion left in the tank and he lives with 5 damsels, a baby clown, a mandarin, and that big anthias. Now some of the scorpionfish I've kept are another story lol, the white one that you can see in the bottom right has eaten 7 tankmates over the years, including another scorpionfish and a fu man chu lionfish. Thank you for the compliments!!