Please look at one of the Mods named sk8r, and check out the blogs under his name. He has many good ideas on how to eliminate cyano and other problem algae/bacteria issues. But a quick answer is NO. Lights out for 3 days should not cause any problems. HTH
Cyano will still be there after 3 days of no lights, sorry. They will just feed off the nutrients in the water. Fix your water quality and the Cyano will disappear.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.