Need help with sand plague

[tprowse0804]

Originally Posted by naesco

I am correct that you have a 3 week old tank and you have already added fish in it?
What is your ammonia reading?
Diatoms on the sand is 100% normal and will go away

Actually it's worse. I received the tank 1 1/2weeks ago and put the fish in immediately(inherited tank from uncle with one day to pick up and set up).
How long does it take to go away, And Does it really take over all the sand? It is getting worse. It looks terrible. It has to one extent or another, the entire sand bottom.
Is there something I can do to get rid of it?