Hi Tony,
My ferts regime is as follows:
Normally I dose 4,9 ppm NO3 and K and 0,7 PO4 per day. Fe from micro solution is 0,2 ppm per day.
But while "treatment" I increased it to 7,36 ppm NO3 and K and 1,05 ppm PO4 per day. Fe from micro solution is 0,3 ppm per day.
Regards,
Steve