I found that illustarion of deficiencies/excesses and a def of S seems to fit very well (pic 8).
My tap water contains Ca 35 mg/l, Mg 3.5 mg/l and S 35 mg/l. I didn't found an ideal value for S, but Ca/Mg should be ~3, so figured out how much magnesium sulfate i should add for that ratio, while considering the amounts of Mg in the other fertilizers. I hope i did this correct 😌
I will see how the recover behaves this time without biobizz bloom and less topmax.
i know its 3 years ago but how did you like the migro light? i just bought the ARAY 4 for a 120cm x 60cm tent and would like some input or maxbe a tip (: