Thats normal, its called Red Slime Algae or Cyano. It will go away in about 2-3 weeks. My refug. did the same thing. Luna _________ 11 yr old system, 90g Corner-megaflow DT, custom 55g sump/refug, 692w lighting, Mag-18, AquaC EV 180, AC-Jr, Pin-Point Cal monitor and too many corals and fish to list. Happy Reefing  | 
