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ive never seen a comp. grow box so im no too sure what the set up is. im not too expericed either but i do know that your better off doing some reading 1st rather than just come on and ask for help, there lots of info on here and if you read through it and follow links you will find yourself learning more than you imagined and you save the same vets on this site from answering the same questions all the time.
ph should be somewhere between 5.5-7 i think, but dont count on it. good luck. EZ |
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When the pH is not at the proper level the plant will lose it's ability to absorb some of the essential elements required for healthy growth. For all plants there is a particular pH level that will produce optimum results (see chart 1 below). This pH level will vary from plant to plant, but in general most plants prefer a slightly acid growing environment (between 6.0 - 6.5), although most plants can still survive in an environment with a pH of between 5.0 and 7.5.
When pH raises above 6.5 some of the nutrients and micro-nutrients begin to precipitate out of solution and can stick to the walls of the reservoir and growing chambers. For example: Iron will be about half precipitated at the pH level of 7.3 and at about 8.0 there is virtually no iron left in solution at all. In order for your plants to use the nutrients they must be dissolved in the solution. Once the nutrients have precipitated out of solution your plants can no longer absorb them and will suffer (or die). Some nutrients will precipitate out of solution when the pH drops also. |
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Good info above Not sure about hydro ph but i grow organic and stick with a nuetral ph>7.0 which works well for me but not sure if that would be ok for a hydro grow. -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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