She's doing it very good, she looks healthy and willing to grow healthy as I see her. I'm fertigating her every day, once (it's coco coir and perlite). The solution concentration is the same that I'm fertigating her bigger sisters, inflow TDS is 350 ppm and run off is nearly the same since I flush a little with the fertigation solution every time, I waste some little material in the run off but I am confident to be flushing the salts away thoroughly, every time.
The fertigation solution composition is ; prosilicate 0.5 mL/L; Cal-Mag 1 mL/L; Grow fertilizer 0.3 g/L; root-excelurator 0,1 mL/L, in that order of addition of the components to the water (tap water 150 ppm).