I really would like to keep a yellow(some refer to it as a canary) wrasse in my new 40 breeder reef. Is it possible to keep one in a tank with either bare bottom or a shallow sand bed? Also would it attack cleaner shrimp or other inverts??? The other fish I would like to keep are a clownfish, blenny(algae eater), firefish(?), royal gramma(?), and a cherub pygmy angel. Any thoughts....