Cavan, I agree. I'm currenlty adding 1.5 ppm PO4 and 4 ppm NO3 three times per week after a 20% WC. I'm thinking of going to 2 ppm of each, but this really doesn't "sound" right, according to what I'm accustomed to. I might try adding a bit of K2SO4 first to see how the NO3 responds. |