Ok we'll ive heavily googled it and come up with a solution:
#1 dont buy chemicals to remove the algae. Treat the problem not the symptoms.
#2 manually remove the algae
#3 reduce lighting period
#4 perform extra WC
#5 Add carbon because cyanobacteria loves nutrient rich water. The carbon will absorb some of the nutrients.
#6 test for phosphates and nitrates
#7 if your nitrates are low do not be deceived. The algae is probably eating them. So you might be overstocked or something.
#8 get a skimmer or a better skimmer. The skimmer will destroy the nutrients before the algae can get to it.
One thing you might have not notice people say its a good idea to add more circulation, I had cyano, I did add circulation and less light and it took care of it for me.
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