Algae help

[mr11]

So my tank has been up and running since late October and I'm trying to get a handle on this algae and would like your opinions on what I can do. Attached are some pics and a video to help with ID. My main concern is that it is taking over my live rock and does not blow off with a turkey baster so I'm not thinking Diatoms. What you see on the glass accumulated over 1 week, since I last cleaned it. Recently started running GFO and carbon. Let me know what you think! Thanks. 

 

https://youtu.be/0gKZMImS894

 

 

 

[flooddc]

Look like your tank is still cycling! the white rock look pretty new. Did you just add more dry rock? Adding dry rock will start a mini cycle too.The video one look like hair algae to me. 

Edited January 22, 2016 by flooddc

[mr11]

Interesting, thanks. The dry Marco rock has been in there since the tank was set up 3-4 months ago. The purple rock I bought as cured live rock from a LFS and was added at the same time as the dry. I haven't added any new rock since then. But as you mention the rock is still white, no coralline or anything. My mag is low, 1050, so maybe that's why? I know at least the nitrogen cycle is complete as those numbers have been stable for quite a while. Phosphate and nitrate are both reading 0. Part of the uglies? Will any harm come from the algae covering my live rock? 

[flooddc]

I has all kind of cyano algae (red, green, brown), used to bother me, but not any more. you can remove them from the rock using a toothbrush.

Also, did you change your lighting? I have had algae outbreak once from switching lighting from t5 to led.  

[mr11]

Can/should I toothbrush the rocks in the DT? I'm not sure how feasible it would be to remove them. 

 

I have been running LED's since the start so I don't think it's a lighting issue