Water Condition

[FaRico]

Ok, so I've had my new tank set up since May, and I still can't get my water crystal clear. I see so many pictures on here and the water is pristine. Mine isn't so much cloudy as it has little particles always floating through it. I have foam filter the water before it reaches the sump water. I'm skimming, and have some rock and cheato in the sump as well.
I don't what I'm doing wrong, or not doing at all. Any help from you pros?