Did you put sand in the tank? If so was it moist live sand, or dry aragonite (even pre-rinsed, non-live aragonite can take some time to settle).
Believe it or not, as the beneficial bacteria populate on the sand, the sand actually becomes 'heavier' and less apt to blow around.
You could try using a product like Kent Proclear Marine if you're really bugged by it... I'm not a "pusher" of stuff like that but it's a flocking agent - it will grab fine particles and make them heavier - they will either fall to the bottom (to be vacuumed out) or make them larger so that the
mechanical filter pulls them out instead of letting them pass through.
Jenn
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LFS Owner:
Imagine Ocean

Just keep skimming, just keep skimming, just keep skimming, skimming skimming! What do we do? We skim, skim, skim!