I did everything as normal. I normally check for cyano and take that out, a bit may have been eaten by fish... After doing the cyano check I do the 25% change. This time around I cleaned out the filter and added the Purgen. I did notice that in my last change there was a new cave that something dug under a liverock. Could it have been trapping a toxin pocket then it just burst? All my corals seem to be alive and fine, the toadstool has started to come back out, my brains are accepting food and the zoas are open. I dont know what it was but the fish smell has dissipated and it got expensive fast.


