Dilan Patel
2500 Club Member
Hello, I have a very established reef tank but for some reason this past week green film algae has been a real pain. I have GFO reactor working...Probably time to change the media out. But everytime I clean the glass new algae forms by the end of the day almost that now I have to clean it daily. Nothing has changed in the tank. I run T-5's as supplements to kessila 160's. I will check phosphates in the morning. I know they were a little high from previous tests so I put a few drops of phosphate RX to help it out. I am just wondering what could be the cause for this to all of a sudden happen. I actually did increase intensity of the kessil's from 90 to 100 during high noon in the time cycle. But that is all. Any Ideas and or thoughts would be appreciated.
... GFO is probably exhausted and you increased the intensity of your lighting. Both of those will increase the green film algae on the glass.
