Vita Grow Super Micro 3-10-20 Dry Soluble Plant Food 1 Lb Fertilizer Nutrient Part (A) Made in USA Vita Grow plant food is a proven nutrient with a great field record of over 15 years. It is an inexpensive workhorse for both hydroponic and soil growers. Vita Grow is a two part formula (Super Micro part A & Super Fast Grow part B) with a bloom enhancer (GiantBloom part C) These unique nutrient delivery formulas give the grower the ability to easily adjust nitrogen levels before or after the bloom stage You will need all three parts for proper bloom growth