what size tank do you have??
I have one from Hawaii (purchased from RSA) in 375g tank with LPS and a clam and (knock on wood), it has not bother anything so far. However, I do keep my fish well fed. I feed at least 3 times a day and one of the feedings is a calupera frozen cube from ocean nutrition. If you plan on keeping dwarf or large angels for that matter, they do need some algae in their diet.
HTH,
Kirk