help

[eddy]

HELP! I am new to the salt water world, I set up a 90 gallon tank in the end of December, slowly introduced live rock and some corals. I have 63 pounds live rock, some colts, shrooms, pulsing zenia, zoo's, toadstool, and a few other odds and ends. I recently added fish 4 clowns, 3 damsels, one jawboned and one royal gram., and one yellow tang I have about 18 hermits, 10 turbo snails, a peppermint shrimp and an arrow crab. One of the live rocks I bought had a small bta on it and its doing fine. I bought a long tenticle anen for my clown fish and for a week and a half it did fine. It now looks listless, fell face down off its rock once, I put it back, now its hanging on by a thread. Most of the tenticles are shruken and its mouth area is wide open. I tested all my nitrites, nitrates, ammonia and ph and everything is at the proper levels. What the hell is happening.