so far so good. no cyano. my green slimer acro tips are dead/white and coral is deep brown now.. but polyps are out and it will hopefully recover within next couple weeks. I even leave my daylights on longer now then before.. before if I ran them more then 6-6.5 hours cyano would form, now I got them 7.5-8 hrs and all is good. I did probly 20% wc after treatment and another 10% wc yesterday. skimmer is running like crazy, lots of water in cup..