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- Aug 7, 2017
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I've been trying to get rid of this for the last two months. Ive been doing 20% water changes weekly for about a month and half. I have also tried using the red slime remover which slowed it down but as soon as I stopped dosing it the cyanobacteria came back. My nitrates are at 2.5 ppm and my phosphates are at 0.25 ppm. How do I get rid of this stuff?