I would love to get a schooling bannerfish for my 75 gallon reef. But first I have a few questions. I have read mixed opinions on how reef safe heniochus diphreutes actually is. Is it reef safe. Also would a six inch bannerfish outgrow a 75. the tank has a pair of bartlett's anthias, small male maroon clownfish, african flameback angelfish, and pinkspotted watchman goby. nitrate is >10, ammonia and nitrite 0.