So what is the recommended tumble rate? I have read that if they tumble too fast there is excess carbon sluff off the biopellets that feeds the cyano if the skimmer cant pick it up... Is it like a regular cycle that will eventually go away (all other things considered) or will I always have cyano outbreaks? My water quality is good and the only thing I can see causing the cyano outbreak is the biopellet reactor. I am running a GFO reactor, only use RODI (TDS 2 or less), nitrates around 10-15, phosphates have been 0 (even prior to the outbreak)...