That PPM number is based only on your MAIN macro and micro nutes. If you are using the manufacturer's full product line than just follow their recipe regardless of the PPM.
herbie the love bud Reviewed by herbie the love bud on . When to check PPM level Hey guys, After some experimentation and some failures I've come to the conclusion that I could be measuring PPM levels completely incorrectly.... My main question being this... should I be checking the PPM levels after the initial veg/bloom nutrient is added and before the others are added (liquid karma, humex, Sweet etc)... The reason being is I am finding extremely hard to keep the PPm levels between 400-500ppm during the early veg stage without severely cutting back on all things I Rating: 5