What is brown algae growing on my sand?

[redheadedcoral]

Over the past few months this yucky brown algae has been growing over my sand bed. Can anyone identify it? It’s kind of hairy in appearance if you look at it up close and it sticks the sand together. My nassarius snails avoid it and just stay in a clean corner of the tank. How do I get rid of it?

[FISHnChix]

Too blue of a picture.  When you want an ID it's best to post a picture with the blues off bc it will be easier to see.

 

Looks like diatoms to me. Could be cyano . Google pictures and compare to see what you think.