I've done some reading on acans lately. I'll try to throw out a few tid-bits from memory without having to go back and verify. You probably already know that acans prefer low flow and low to moderate light. They dont need to be fed but if you do..you need to be careful not to overfeed. The heads can turn protien into larger/new heads faster than the skeleton can use calcium to build a sturdy enough structure to support them. Thus the undersides of the heads may be pinching and creating small tears allowing a place for bacteria or fungus to take hold. It is also recomended not to add acans to a softy dominated tank. When corals like GSP start growing like weeds they produce a chemical that will make acans unhappy. There are some corals that actually do better in "dirtier" water. Acans need nitrates and get most of their nitrogen from fish waste but if thats not enough they may benefit from a calcium nitrate suplement.
Anyway..after babbling all that I realized that preventative measures wont help you a bit since you have the problem now. Can you get any good pics? Any other corals nearby to sting it? Added any liverock or anything that may have introduced a bad hitchhiker? Sounds like you may need to dip or frag or both if it's to be saved. I've heard of a few people who removed as much damaged tissue as possible and smothered the infected area at the base with epoxy putty but sucess was limited.
Bookmarks