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South Central MN | The "dead bugs" part can happen rather easily since a few microbes don't like to be put in a plastic jug and moved cross country.
Not sure I'd call water conditioning of some sort a "biological" either since it isn't dealing with a living organism. Kind of like pouring a carbon based N stabilizer in a fertilizer tank, it does some good but varies year to year and by conditions also. May be hard to measure the effect at times. | |
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Biologicals on youtube