cant find this info anywhere
 

Where can I find the nutrient ratios? Like, the optimal for all the plants. I've asked around for a few months to no avail. There was that thing harvard did for tomatoes but thats it.

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.