Brown Stuff

[gq]

I just bought a three in one light.
The fixture consist of 1 blut light, 10k light and one more like a bright light. I forgot the names of each light, sorry!
My problems is this:
I am starting to get all of this brown alge

 

[ebeckels]

where is the brown algae? on ur sand? On the glass? What are your water levels? How long do you keep the lights on? Need some more info. first guess would be diatoms though...They are a golden brownish algae that usually comes with newly established tanks... They go away after a little bit of time on their own usually. They are a good thing though... (bottom of the food chain..pods eat diatoms) Anyways...give more info and someone can confirm this.