Hey guys, I have one tank that I cannot get the water to get back to clear in. The tank was fine for months, then had a bubble tip die which caused a chain reaction and ended up losing upwards on 100 nems. A few days after that the water began to develop a green tinge and ever since I have been unable to get or keep the water clear. I have added 2 UV sterilizers both with feed pumps in display to try and help but that doesn't seem to be working. Flow is turned down to just above a trickle on them. Also running carbon and GFO. Lighting is Radion XR30 Pros + Blue+ T5's. If I do a large water change the water will clear slightly but by the next morning the green is back. I removed all rocks, dipped in peroxide and that did not seem to help either. My next step is to replace the rocks one by one. I have already replaced one. Going on just over a month with the green water issue. I am also using API Algaefix Marine & Vibrant. Tank is a 40B with 20L sump. Any tips or tricks are appreciated.