Hey guys, I have a 55G reef tank that has been running almost a year now. I have been battling this green algae issue for a long time and I cant seem to figure it out. Salinity; 1.024 PH; 7.9 Ammonia; 0 Nitrate; 0 Nitrite; 0 I am running a 4G refugium with deep sand bed and macro algaes in it. A Phosphate Reactor with Fluval Lab Series Phosphate Remover which I purchased about 2 months ago (the reactor not the phosphate remover) trying to figure out this green algae problem. (It has not helped at all) The API phosphate test I have is kinda hard to read but it seems like phosphates are at 0. Two Power Heads and a Protien Skimmer. What do you guys think the problem could be?