The pH perfect connoisseur Grow and Bloom A&B is for the experienced, highly artistic, professional & commercial grower. If you are a top-notch grower & has maxed out the potential of your current feeding program & If, after all that success, You still need more yield & potency then pH perfect connoisseur may be the right base nutrient for you. Ph perfect technology automatically keeps the pH in the "sweet spot" Every week of your grow. If you already have the skills - pH perfect connoisseur has the power to make your plants reach their full genetic potential.