yes I did use it to get rid of the cyano, it did a wonderful job and the tank looks so much better. I did the 20% waterchange on wednesday after the 48 hours of treatment and am running carbon again as well.
Any ideas if chemi-clean affects urchins? Specifically tuxedo urchins? Mine isn't looking so hot, he has a few spines next to him and I have a feeling he's on his way out
