it's a much better idea to put it in vinegar. Even with a razor you won't have gotten it all, and the CaCO3 that gets left behind is like a magnet for more precipitation. On a smallish impeller and shaft like that, 45 minutes in regular old table vinegar would leave it sparkling and 100% free of any calcified build-up. You should do the same with your skimmer's impeller, and any supplementary water moving devices you have elsewhere in the tank, making sure to completely disassemble any parts that move against one another first. You will probably be surprised at how many bubbles start rising off things you didn't think were coated in precipitation.
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09-03-2013, 09:37 PM
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