I posted a couple weeks back about my cyano and I am just getting nowhere I feel like.....I have a 180 mixed reef and I DO NOT want to put a band aid on this issue with any medicines. 3 days of no light, or stuff like that....I have an 8 bulb ATI unit that runs for 6 hours with all the lights on and I have a small refugium set up in my sump...My parameters are all in check...nitrates "read 0" and so do phosphates, but obviously they are being used up quick enough....I feed once a day but not much at all, I do not feed corals or anything else!! I do 15 gallons every friday for water changes. The only thing I have been dosing as of late now is the continuum product called CLEAN-M .....Not sure if it takes awhile to have the bacteria kick in or not, but the cyano isn't getting worse, but I feel like it's at a stand still. I have also read that water changes can actually make the cyano keep growing because of trace elements or something like that? I just need some opinions on what else I can do with this... I have sucked it up with the hose during every water change, but it comes back the next day. Or maybe I am doing the right thing and I just need to be more patient. Just let me know if anyone can help! Thanks so much!