Wrasse Behaviour

[Blue Ram]

I put a new Christmas wrasse in my tank late Friday night (1 a.m.). Was very actively swimming and eating Saturday and Sunday morning. Did a water change Sunday before noon and was muking about in the tank (rearranging corals, etc.) haven't seen the wrasse since. Tank is not that big (34 gal cube) but with lots of rock. I don't think he carpet surfed - no evidence. No sign of him last night when I fed the other fish. Guess I'll have to wait and see - that's one thing that sucks about reef tanks. So many places to hide and near impossible to find it unless I tear down the tank!!