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I have been coming across the term N-P-K ratio a number of times. What is
the significance of this ratio to the plants health/growth? Is there an
optimal ratio? I have also read that N-P-K ratio can be changed to achieve
certain results. How is it so?
I can measure N & P in my tank with test kits available for the stores.
But K is not easily measured with any kits available to hobbyists. How
than do we know the amount of K available to the plants?
I am trying to find out the optimal amount of nutrients to supply to my
plants. I will be very grateful if someone can help me out on this.
B C Lee(Singapore)