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Nutrient Issues

Posted by hydromikevt Vt (My Page) on
Mon, May 25, 09 at 22:16

Hello all...I'm new to this Forum as well as hydroponics in general. I've been interested for the past couple years and finally started up my first aerospring Sunday... I'm having a couple issues though...I'm growing habaneros in Hydroton using General Hydroponics Flora series nutrient. I have hard water in my area with a ph of around 7 (using liquid test kit). After getting everything together and running with the ph adjusted to around 6 everything seemed great, the plants even perked up a bit! The next day i went to check the ph of the nutrient and noticed a white precipitate coating the entire inside of my res, pump, etc... Some research led me to the possibility of Potassium precipitate because i added ph down(Gen. hydro) undiluted to the resevoir. Thats where i am now...The plants still seem fine for now....Please help...I don't want to get off to a bad satart.


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RE: Nutrient Issues

Potassium precipitate is unlikely, because almost ALL potassium salts are soluble. It's probably calcium/magnesium (hardness).

When I get that, I filter the nutrient through a coffee filter. Then I lower the pH (I use 4% nitric acid), and then I pour the nutrient back into the reservoir.

This procedure takes out the excess calcium/magnesium in your nutrient.


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