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Old 07-02-2009, 11:36 AM   #7 (permalink)
StevenLeeds
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Default Re: Biofilm removal on surface water

Take you hose from the gravel vac so you just have the hose. Get the water flowing into the bucket and bring the hose to the surface of the tank. Hold sort of horizonatal half in the water and half out. You notice it sucking the film from the surface.
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