Well, i water them with mineral water with 2ml/l of 8/2/6 nute. Next wattering i add 1ml/l of 2/6/3.5. Doesn't say on the bottle if there is Magnesium in it or not.
So what are my option? (don't have pH meter, unfortunetly)
If Mn is magnesium then we're alright, cuz i have a multi-purpouse nute. 0.001% is ok?
I agree magnesium def... Classic case of it too. That pic should be in a guide