I just bought a HOB refugium and will be getting some Chaeto to put in it. How many hours do I need to run the lights to keep it growing? I have read that I should run a reverse lights with my tank but since I have FOWLR I dont really think I need to. Plus the light is so strong it illuminates the tank. Wouldnt it be better for my tank to be pitch black during the night so all the night critters can come out? Is Chaeto the best algae to put in my fuge? If not what is the best thing to get?