Advanced Nutrients Sensi Professional Series Bloom B Soluble, 25 lbSensi Bloom Is For Growers Who Want Remain Competitive With Out Sacrificing Quality WHAT IS THE SENSI PROFESSIONAL SERIES? Backed by 23 years of science, Sensi Grow & Bloom Water Soluble Powder is the ONLY powder line that leverages the Shift in the macro, secondary, and micronutrients your crop needs between both phases to reach the absolute peak of its true genetic potential. When you Hit this Shift, you can expect heavier, more compound rich yields