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Stubborn Surface Film


sirspins

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New IM 20 gallon peninsula build! Currently cycling over a week with dry rock (washed before adding) and live sand (no livestock, fish-less cycle) and a layer of surface film has developed and no matter how much surface agitation and flow it never seems to go away. Any thoughts or advice? Running filter floss and the small bag of carbon IM provided with the tank.

Aquarium film .jpg

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SliceGolfer

What is the water level like in the sump area? The surface should be skimmed by the weir intake grate and down into the filter pad. If the water level is too high you will not get effective surface skimming.

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