I wouldn't call it a miracle dip for zoas no more than I would call a fresh water dip a miracle cure for nudis. I have found that the key is daily observation and moving quickly to resolve the issues we have be it fungal, bacterial infection, parasites, predators etc in a very timely manner. I've heard great things about some of the things people are trying and I have heard horrible reports from others. There just aren't many absolutes in reefing. On that note, I tried the Furan and it worked for me Rev and a few others I know who have tried it.