Advanced Nutrients has made SensiBloom easy to use- just pour equal amounts of Part A and Part B until the proper nutrient strength is reached. It's that simple.  (Do not mix as a concentrate, add part A and part B, separately, to the reservoir)

N-P-K levels: 1.5-4.6-5.7

Also Contains:  Magnesium(Mg)  1.00%, Sulfur(S)  0.40%