What's happening here

[byerlyjb]

Anyone know what these spots on the tank are and why this is turning brownish color? Thoughts on a fix?

 

[Bunnee911]

Hello there.

 

[cloak]

That brown stuff your seeing is most likely Diatoms. Blooms like this are actually quite common for new tanks to go through.

http://www.reefcleaners.org/nuisance-algae-id-guide