10 Gal Nano

I just set up a 10 gallon nano around 2 weeks or so. I have about 10+lbs of sand with 10-15lbs of live rock/base rock. I am having a really bad brown algae problem on the sand as well as on my rock. i was wondering if i should do a water change or maybe syphon the sand. thanks for yalls help.

P.S. this is a question for my friend who just set up his nano and doesnt believe my answer so i told him i would post his question.

thanks to all
 
Definitely diatoms. These clear up. Once the tank has zero ammonia and nitrtite and lowered nitrate, add some clean up crew to help tidy the tank.
 
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