[missionsix66]

Welcome! The fish looks like a purple pseudochromis from the picture. Feisty little buggers. He looks a little over-fed though. There are alot of problems that can potentially occur with over feeding. Such as nuisance green hair algae. It can over take your tank very rapidly. Also your lionfish will eventually grow large enough(very quickly) and eat the pseudo, clown, they love shrimp, and anything small enough to fit in it's mouth. Also dragonets (mandarin gobies) require a special diet of copepods etc. that are usually raised in a refugium attached to your main system. As for the shark good luck. I wish you luck in this hobby and if you ever have Q's feel free to write.