So I am currently debating on wether or not I can keep these in my tank, I have never tried to keep one and I want to know if I can. I do not have a hood or screen or net covering the top of my tank. Is it really necessary to have one in order to keep the wrasses??? I know some jump but how much of a risk am I taking by not having one?? Also what types of wrasses can I keep?? I have a clam and mixed reef, also just some clowns and a Regal.... some chromis, crabs and snails and 2 azure damsels. Thats it, so start with the suggestions? I am thinking either fairy or flashers.