Coral snow just binds the floating particles in the water and helps the skimmer grab them better. Thus the water becomes sparkling clear. CS is one of those products that works flawlessly. Just dose half the recommended dosing. Zeovit products are extremely concentrated (2ml is enough to make my 70 gallon water cloudy).
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You wouldn't want to see my tank. I don't use fancy equipment and I am a noob 
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