White fuzz in tank

[Ima Newbie]

I have a white fuzz on everything in my tank. Its not on the walls of the tank, but all the decorations and gravel. Is it alge or some kind of fungus? Is it normal or do I need to do something to get rid of it?
Im a little worried.
Help!

 

[kgrehm]

How long has it been there? When was the last water change? What are your parameters?

 

[Bol]

Also, do you happen to know the GH and KH of your water?