I was at Carter's Thursday. They are having a bad break out of Cyno in almost all salt tanks. There fish guy knows fresh, but not salt. He seems sincere on wanting to do the right thing, but just does not have the info. They are testing 0 on ammonia, nitrites, and nitrates. I think it is a flow and filtration issue myself, one little protein skimmer for all of the tanks. Very little live rock in there. Lots of fish. Seems to be the problem. If anyone has the time and the knowledge you might drop by and give them a bit of advice. I just feel sorry for the livestock.