High ph is a common concern among beginning and intermediate aquaponic growers, who want a quick fix to bring it down. my philosophy on lowering the ph in a system with high ph is simple. if you’re thinking about using a chemical or acid to lower your ph, don’t.. The best ph for aquaponics is between 6.8 and 7.2. this range is considered a happy medium for plants and fish since they each have specific ph requirements. and to arrive at the right ph level, you need to have a reliable ph meter. five of the best ph meters for aquaponics are: bluelab penph; mw 100 ph meter; apera instruments pocket ph meter. Aquaponics in arizona pt.3 - ph levels and the, discussion of ph levels and the nitrification process. fish and nitrification like high ph. plants like low ph. a successful system, once established how high can water be wicked upward? (aquaponics forum at, author how high can water be "wicked" upward? chelle lewis joined: dec 10, 2009 posts.
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