B.C. Boost, B.C. Bloom, and B.C. Grow are professional, highly concentrated vegetative and flowering fertilizers. When used in combination, B.C. Hydroponic Nutrients provide the proper balance of all the essential elements, ensuring that your plants will achieve optimal growth and maximum yield. The specially balanced formula maintains nutrient reservoir pH levels, so that frequent pH adjustment is not necessary. With B.C. Hydroponic Nutrients there are no secrets, and there is no guessing; tested and proven mixing ratios are clearly printed on every label, so that the parts per million (PPM) of any solution can be manipulated with ease! Technaflora