how do i get my water "clear"

[JonT]

I think the easiest thing to do would be to solve the problem, and not the symptom's.

If you have particulate in your water column, then something isn't right.

Over feeding? Are you putting more into the tank, than is being consumed (and I am including all the way down the chain to the bacterial level)

Water flow? Is there sufficient flow in the tank? Is it being fully utilized? The flow should keep particles suspended, but only for the purpose of getting it to the skimmer.

Skimmer? Is your skimmer rated for the size of the tank you have (realistically? Some companies put nice big numbers on them, but lets be honest when were looking at them) Is there too big a bio load? Feeding habits? Correct GPH going to the skimmer. Water moving too fast through the sump?

I would look at those. If all of that is working correctly, you shouldn't have the problem your talking about. If you feel all of that is okay, then I guess you can start spending money on the additives being mentioned. But it is IMO that you would be using the product for the wrong reasons.