Water change and mesaurement
This morning I made my weekly water change and also measure of the accumulated nutrition levels.
NO3 = 30ppm
PO4 = 2.5ppm
Fe = <0.05ppm
Fe is far to low, my guess is that the uptake has started for real now, everything is growing very well now and it looks like the plants are thriving.
I increased the daily dosing of Fe a little to make the weekly total level 0.2ppm higher.
