The Planted Tank Forum - View Single Post - EI dosing lowing my PH?? Help.....
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Old 02-22-2011, 07:24 AM   #6
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As pH drops under 6.5, biofilter bacteria may start shutting down or dying. That may result in a sudden increase in ammonia production. If there wasn't sufficient plant growth to keep up with it, this could be responsible for the death of your oto's.

I suggest increasing your kH with "Barrs GH Booster" from the same website where you got your dry ferts.

Or you can do it old-school with baking soda and epsom salts.
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