Thanks everyone! Are they relatively hardy? I am turning my reef into a fowlr and will probably keep a few corals in there that my angels don't eat. So far, they havn't taken a liking to any of my sps or zoas. Since I am adding more fish, my water may become a bit "dirtier" and phosphates may go up a little bit. Will this stag be fine in a little dirtier water like the montis are or do they need pristine water?