Hey guys wanted to say thanks I have been doing 20% water changes every 3 days. I turned the lights off. But the tank in is my living room so it's getting light no matter what. Well less then the led ofcourse. So after 3 days of mid blackout. The cyano has not been growing and kinda turning black (much less in mass as well). Is that weird? Should I continues the no led thing for a while longer? Been 3 days?