Hi Guys

There is a NPK ratio that is ideal for MJ plants. Get a book and and find that ratio or google on the web.. easy stuff to find.

Since the NPK on each fert brand is different you will have to do a little math to get the right mixture for each brand of fert.

You should definiltey invest in a PH tester.. even if it is a $2.00 manual tester.. they are still very very good. '



Here is an example of a nutrient ratio for vegging plants -
N150, P100, K120, Ca75, Mg75, S25, Fe15, Cl15.