Help!!! Ive been battling the green water for a week. Did a 50% water change & then 48hr blackout, then another 50% water change. Water was not green after, but it was very hazy. Thats when i noticed my neon that had the discolored place on his side. I dosed maracyn yesterday & today, and my water is right back to pea soup green. I use easy green & liquid co2 from co-op. I put root tabs in also since i have a sand substrate. Im trying to get my plants to grow. Its just been problem after problem with this tank. I cant win with it. My parameters today are nitrate 20 ppm, nitrite 0, gh is >300, kh 40ppm, ph 6.4, chlorine 0, amonia 0. I have a 29 gallon, and a 10 gallon also… never had any issues with. This 55 gallon has me really discouraged & ready to give up 😔