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Discussion Starter · #1 ·
Hello,
I was wondering if there is a threshold on available nutrients that plants have less difficulty in taking them up. For instance; if we take two identical tanks with the same size plants and one tank had 5 ppm nitrates and the other tank had 15 ppm, then the question would be:
Would the plants in the tank with 5 ppm nitrates have a harder time taken up this nutrient then the tank with 15 ppm?
 

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Discussion Starter · #3 ·
Thanks,
I was thinking that the higher ppm might affect the uptake much faster and the lower ppm much slower. So actually, the plants in both tanks if identical, are taken up the nutrients at the same rate. In other words; If the input and output of both tanks remains the same, then the ppm stays stable provided other parameters are in balance.
 
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