red algae on favia

[wantsummora acropora]

I have this red algae on my scape and it is spreading to some of my coral, more particularly this favia. It is not stringy or slimy like cyano. I did a brief dip in hydrogen peroxide with no affect. Yesterday I vacuumed the sand bed and did a 25% water change to reduce nutrients. Leaving town Thursday for a week so I can only do little stuff right now. Any Ideas?

 

[hzheng33]

interesting, without ready your note...i would say it's cyano in early stage of development...

 

[wantsummora acropora]

Been through that months ago with the slimy stuff. I used Vibrant to clear it up. This stuff has been around for a while (a few months) with no slime. Its all across the back glass and overflow. The fish (tangs and foxface) graze on it. Even the fairy wrasse eats it.