I recently bought a rather large bubble tip anemone. When I got him home he found a spot and immeditately grew to about 3 times the size he was in the fish shop. A couple of days later I fed him a piece of organic shrimp. Now... many of his tentacles are shriveled and green and his mouth is quite prominent. He hasn't moved but I think my clown fish (2 maroons) are distressed because they aren't eating much at all. Also - it 'curls' up quite small then then stretches back out... like it has a bad belly ache.

First anemone... and I am worried... BTW - the tank is a 75 gal with VHO lights (just installed for the anemone) and other than the 2 clowns I have a cleaner shrimp, a chocolate chip star, 2 damsels and assorted snails and hermit crabs... so the tank is far from over populated...

Thanks for the help and advice!!!