Brown, Rusty looking stuff?

[Jakewink22]

Brown stuff ( don't know what to call it )is starting to form in my tank, pretty sure it's good but could use other opinions, water test all came back good

 

[Mrc8858]

Just diatoms. Very common in a new tank and will dissapear on its own once the excess silicates and nutrients are eaten up.

 

[Jakewink22]

Awesome, thanks for your help