I have a 125g tank, aprox. 140 lbs of live rock, 1 tang, 1 damsel, 2 fire shrimp, 1 firetail blemmy, 1 black urchin, 3 emerald crabs, 2 anemomes and snails. I have 4 power heads that have been checked and 1 skimmer that has also been checked. The clown always stayed close to the anemome except to eat and he has been gone for 3 days with no trace. His anemome was the only thing large enough to eat him. Thanks