Orangish brown stuff on my sand bed!!

[smhray]

Hi everyone, I noticed that my tank’s sand bed is almost completely covered in like a layer of orangish brown stuff for the past few days. It also has like hair like parts kind of like cyano but I’m pretty sure this isn’t cyano because it’s not red and I had cyano too that looked different. My tank is only 4 almost 5 months old so I’m wondering if this will just slowly cycle out. Can anyone help me out identifying this and possible problems and if my corals and tank will be okay. Thanks for any input! Also this has caused my snails to have afros

 

[Cory]

Sounds like dinos. Uv is your friend. Id get a pic with whites or flash on.