I've only had my tank up around 2 weeks and in the past 4 days the water has gotten very cloudy and some of the rock in the front has turned from its normal bright white to a dark orange color. Any idea what could be causing this?
I've including a picture that was taken with my webcam so it's not of the best quality, but I think it helps you get the idea.

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Tough to tell from the pic but based on the 2 weeks, I'll say Diatom algae. Does it rub off easy?

EDIT: JINX, my post is first, I win. LOL

My guess is that you have diatoms, which are VERY common in new tanks and will go away - they tend to come from the silicate in the water. If you scrub off the rocks like with a toothbrush then it rinses away, yes?


EDIT: I wonder if we can "jinx" ninja posts... Walter Walter Walter

I just took some of the orange rocks out of the tank and when they hit the air they seemed to turn white again. A few were still lightly orange and rubbing them turned them white. I think my mollies are supposed to eat diatoms, but since I feed them they don't. The female is pregnant so I want to make sure she is getting enough nutrition.

I had to read those posts twice...I was thinking "dang I didnt even post?"...lol

But back on point...I agree with the 2 that confused me...Sounds like diatoms.

You'll be lucky to keep those rocks white - overtime gunk and various stuff will build up on them. Mollies will pick at the diatoms if they get thick, but yeah, you'll need to supplement.

Alright, thanks for all of your help!