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Closser
02/02/2012, 06:29 PM
Title says it all. Is this cause for worry? Probably yet another indicator that my water quality isn't where it should be? :headwallblue:

Agu
02/02/2012, 07:03 PM
Not unusual because refugiums generally have lower flow. Drag a paper towel across the surface of the refugium and you'll remove most of the protein slick. Call it "nutrient export" by paper towel ;) .

Psirex
02/02/2012, 07:25 PM
add an airstone to break it up...