whats all this ALL wrasses are not reef safe talk?
there are a lot of reef-safe wrasses such as fairies, flashers and some other like yellow coris. these fish will pretty never touch your inverts unless they are smaller than a thumbnail and in the water column. of course, wrasse is the largest group of fish in the oceans and so there are quite larger and less "safe" species out there. Coris formosa is definitely one of the larger reef species that can be quite strong swimmers, intelligent, violent, and crustecean devouring. you may think that you will easily be able to get this fish out when it is 4 inches, but that may prove easier said than done. my yellow coris used to dive into the sandbed whenever the nets entered the tank, and was always the last fish to get out of the tank, after all of the rock was out and the water was about 2" deep.