Need something to eat soft coral!

[Blue World Aquariums]

I'm getting to the end of my rope with this stuff!



This rock used to be a huge colony of dragon eye zoas. This stuff is ugly, very difficult to remove manually, is capable of overgrowing other corals, and drops polyps to spread to other areas of the tank.

In this tank we have a school of 5 Klein's Butterflyfish and 4 Bluefin Damsels (Paraglyphidodon melas)...both of which are supposed to eat soft corals. Unfortunately they don't touch the stuff.

Any ideas?