Red slimy algae

Kehaulani · Sep 8, 2016

Don't know what this is but it's annoying me. My tank is a 75 gallon mixed reef. I added some branching live rock a couple months ago and lately I've noticed that I got this red slime growing on certain parts of the rocks. I thought it was cyanobacteria but after treating with chemiclean, it was still there. My parameters are good. Nitrates are about 10 ppm but the rest are close to or around 5ppm.

I just don't what it is or how to get rid of it and like I said it's an eye sore. I added another wave maker to my tank today thinking maybe it was the flow that was causing it to grow. Hopefully more flow in the dead areas will get rid of it. Just looking for more advice and feedback.
Thanks

tomtom2245 · Sep 8, 2016

Looks like cyano to me. I have had cases where it took 5+ chemiclean treatments to get rid of it.

cromag27 · Sep 8, 2016

Chemiclean works on spirulina but not cyano.

Check out this thread: http://reef2reef.com/threads/cyanobacteria-questions-answers-and-solution.253823/

Kehaulani · Sep 16, 2016

So I haven't been on in a few days due to work and school but I did want to thank everyone who helped by giving me advice. Here some pictures after treating the cyanobacteria with hydrogen peroxide.