I have had this algae in my tank for about 1 yr now that came in on a small sps frag. It didn't grow at all for about 6-8 months then all of a sudden it start to appear all over the tank. Now all my rock is about 50% covered with this pest. The lobophra is starting to make some of my zoa's close. I have try to remove it by hand, but it still come back. I thought about removing all the rock, but they all have corals on them. I also thought about adding two emerald crab, but don't know if they are going to be a problem in my tank, and not eat the algae. I was told that a Naso tang will eat the lobophora, but they are too big for my tank. Dose anyone have had this algae in their tank and was able to get rid of it? Any help will be appreciated.