Hey guys. I need some opinions on what to get. I have a 30gal reef 25 gal custom sump deep sand bed. I have 2 clowns and a Flame Angel. I bought the Flame knowing that it might nip at coral. Well the first 3 months it did great and left my corals alone. Now for some reason it has begun to nip at my hammer, star polyps, and favia. So its time to get rid of it. I need ideas on what to get. I was thinks about getting a diamond goby or a golden head goby. But read that they can kill your living sand bed. So please if you have the time give me some names of fish that you would recommend. I would like something that is colorful and active. THANKS!