PH levels is more important when it comes down to
nutrient intake. If your PH levels are off the plants won’t take in the
nutrients needed.
When you buy nutrients it will come with instructions of how much to use per gallon of water. I have always gone with using 1/4 of the suggested amount when starting them off in the
hydroponic system. When they are getting ready to flower I will go up to 1/2 of the suggested amount and sometimes will go as fast as 3/4 of the suggested amount. I have always found using the suggested amount is overkill.