Help identifying this spiderweb algae!

[Araona]

Hi all,

Can anyone please help identify this algae growing in our tank that has gone absolutely crazy over the last few days. It's like a spiderweb and it's smothering the corals. What can I do to get rid of it!?
We have just finished treating the tank for bryopsis and it was looking great but now this has appeared.

 

[ryanjohn1]

Picture is sorta blurry. What color is it?

 

[Araona]

Picture is sorta blurry. What color is it?

Almost a brown colour

 

[ryanjohn1]

probably dianos

 

[ryanjohn1]

Try 3 days no lights. Or if you have to super super low blue light