I think that we have finally finished off our tank. Over the past month we have added a porcupine puffer, a golden semilarvatus butterfly and finally a Moorish idol. They have all gone in to our 220 gallon tank. There are some corals, and I know there are risks there. I now have about 110 inches of mature fish in the tank if they all achieve maximum size. That being said, does anyone have any advice on these last three? I had tried a Moorish Idol when I first started and said that I would never do it again, but my boyfriend and I were at the store and they had one in that was eating like a pig. I took my chances and the plunge. He is eating in my tank like a pig too, but I want any advice I can get on him and these three fish.