What is this seems to be killing my Macro

[J8851]

It seems to be growing on my macro and killing it, you can see it growing in the foregroud and in the back center on my Chaeto



http://reefcentral.com/gallery/data/500/89344mini-algae.jpg

[Pretzeldude]

Looks like Cyano. Do a subject line search on it and you'll get enough hits to keep you reading for weeks.

[J8851]

Well, its clearing up after i added a power-head to my refugium the only affected area.