Adding citric acid to nutrient stock tanks

spek9

Well-Known Member
I use the following as far as nutrients:

- Jack's 5-12-26 (Part A)
- Calcium Nitrate
- Mono Potassium Phosphate (MKP)
- Botanicare Cal-Mag Plus

I mix the Cal-Mag, Jack's and CalNit into two 15 gallon stock tanks for storage. They last up to a couple of weeks. For the MKP, I mix it in a 15:1 concentrate in a one gallon container, and simply add 250mL (1/15th of the concentrate) to a gallon of the other mixture for the plants that require the K and P boost during weeks 2.5-6 of flower.

My water comes out of the lake I live on, and is 6.8 pH and ~66 PPM. After the tanks are mixed and they settle, I get a pH of about 7.2.

My question is, whether if I add a citric acid concentrate to the stock tanks to bring the pH down (as opposed to adding it when I feed), will it interfere with the nutrient mix and possibly cause anything to precipitate and fall out of suspension or cause any other problems?
 
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