Just an update. I've been dosing Microbacter Clean daily for close to a month as well as phosphate and although this has done a nice job getting rid of small patches of cyano I had on the sand and 1 or 2 tiny patches of hair algae, the lyngbya is still all over the tank. I will keep up with the dosing but I am doubtful I'm going to defeat it with just this technique. Anyone out there have experience beating this stuff back?