So, after reading about tdb320reef's reef setup and how he uses MB7 to help combat cyano issues while running bio-pellets, I decided to give it a try myself. I have been dosing MB7 for 2 weeks now as per the directions on the bottle. I have also been stirring up my sandbed every week and blowing off the rocks, which I have all ready been doing every week. Low and behold, my cyano has all most completely disappeared! I figure it will be completely gone in a couple days as 90% of it is gone now!! I don't know if it is coincedence or not, or whether turning off my skimmer everyday for 4 hrs while I am dosing helps the nutrient levels in my tank to balance everything out, but it worked!!!! No more cyano and a nice bright white sandbed again. I will take a picture tonight and show a before and after shot. Again, not saying dosing the MB7 is the sole reason of the cyano disappearing but I can definitely say it has helped! I am going to now drop to the maintenance amount and keep dosing going forward. There has been no ill effects towards any corals or livestock that I have seen.