MOBY DICK LED SCROG

wow, my pretty girl changed a lot, i decided use green sensation for the last month because no have a fertilizer with enzymes and i need protect the roots because the last week start using Sensi Bloom and this is a mineral fertilizer. The yellowing on the leafs is not nitrogen deficiency its is magnesium deficiency, is a big problem for me because in my country only find one product to cover my necessities 😥 but i read a few in internet, and find fast solution and economy but the application is foliar, i have a low humidity soo i think no have problem with plague fungi soo i will take the risk. other solution is up ph water and change to pipe water almost 2 times in a week, apply too.