I am having a Algae problem in my 80G saltwater tank. I purchased a Refugium and have live rock rubble and CHAETOMORPHA in it to help with the Algae problem. It's been going for about 2 weeks now and I am seeing brown algae on the sides but it is also growing on the Chaetomorpha. Will this kill the Chaetomorpha? How do i stop this from happening? should I increase the water flow? Right now the only flow is the pump that pumps water into the refugium, should I add a power head to get a higher flow?