Ok so thats the basics. Now on to the trace elements. Wonder why they call them 'trace' elements? and why you dont see ratios or percentages on how much of them to use? its becuase you dont want too much of them. you want them, but very very little.
Magnesium (Mg): this is a component of the chlorophyll molecule, it works with enzymes in the plant. Magnesium helps support healthy veins, and leaf production.
Abundance: Excessive levels will create a toxic amount of salts,
*NOTE: to make sure your plant is getting what it needs, keep soil pH to 6.5 and 5.8 in hydro, otherwise, the nutes can be there, but the roots cant take them in*
Also, make sure if you notice a deficiency, please please PLEASE, dont drown the plant in that chem to save the day. your not superman. feed the plant. dont suffocate it! Slow changes are the best way to make sure you dont go from a deficiency to an abundance, and the inevitable burn.
So lets start with the basics,