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I have used it for years (after being told by others )that they put it in sryup to help prevent fermenting, at a rate of a cup to about 200 gallons.
I don't think this is anywhere strong enough for nosema,or any ccd problems as we lost about 70% last winter here in florida to ccd.
At about 1 to 100 it will kill most bacteria as a cleaner.
I plan to try using it soon during feeding for the next few months of spliting. Bees in florida seem to have liking for swimming pools as a water source,which tells me that it is not ofensive to them.
I'm think it has some merit worth looking at in general.

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