I like what he says here about a Cyno outbreak. I noticed that when I added my refugium, that was about the time my cyno outbreak began.....hmmmmm.
"And finally, I’ve come to the conclusion that it was the refugium that introduced the first real outbreak of cyanobacteria the main tank has ever had. This was a real battle to eliminate through constant water changes, siphoning, and carbon, but we’ve finally got it under control without resorting to chemicals. To help reduce the chances of reoccurrence, we have stepped up the water movement in the refugium considerably."
I would like to know if he had a cyno outbreak in the refugium also. I do not have cyno in my refugium, only in the main tank.
Think I will email him on this.