Hello, I set up a new reef tank about 3 months ago and finally it seems like its cycled and I'm not losing any livestock. I upgraded to 250w MH and an abundance of green algae appeared. I have various tank cleaners and within the last two weeks started RoPhos. I am using RO water and my Nitrate levels are undetectable. How soon after I start the RoPhos should I see an improvement on the algae problem? I want to stock more coral, but I am hesitant to do so until I have it under control.