you forgot that some fish may be reef safe but are also messy polluters of you water which will destroy your water quality. for example a stingray, reef safe? it will eat shrimp and other inverts, will knock over corals, needs lots of space, will destroy your water quality since stingrays do need to get fed more than once a day and not to mention that if you have anemones and your ray decides to brush up against one, it will leave a nasty mark on the underbelly and can cause a lesion which could result in death. Most people that have reef tanks just simply dont have the room for corals and sharks and rays. most corals are not combatible with these species and because they require large feedings , like groupers will just flat out destroy water quality. most triggers are not reef safe. only Crosshatch and blue throat and similiar family memebers are reef safe. clown triggers and almost any other trigger will eventually eat or just rearrange your reef tank in no time, not to mention they love to eat. However reconsider this.. Even if u decide a crosshatch trigger is what u want ..well they are highly exspensive ( 1000$ and up ) and when they are collected they dont pick up small specimens, when collected they are at least 8-12 inches. so it really needs to be more specific which is hard on a forum cause every reef tank is different and really you could write a book on each fish and each scenario.