What is this stuff? Is it harmful?

[RedEDGE2k1]

This pink/purple stuff came on one of my coral frags many months ago and has since spread across about 30% of my rockwork. It doesn't appear to be harming any of my coral, however my tank is predominantly SPS so I'm worried it may continue growing and eventually overtake the SPS. Should I be worried about that?

I don't know what this stuff is, so I haven't been able to research it. If I need to remove it, what is the best way? Taking apart my aquascape to scrub/brush every rock is not an option. I can pull it off with my fingers but it's also in many areas that I cannot reach without breaking my SPS. Any livestock options to help control it (if need be)?


Thanks for any help-
Dustin

 

[skippy2]

I can't tell for sure but look up 'red turf algae'. Turbo snails eat it if that is what it is.