Advanced Nutrients pH Perfect Bloom 1L is a high quality three-part premium base nutrient blend specifically formulated to provide plants with the precise nutrient ratios and concentrations they need. With an unmatched range of amino acids, fulvic acid and powerful non-ionic surfactants forming a multi-stage delivery matrix, your plants will absorb everything they need. Powerful chelation ensures every nutrient is optimally available to your plants' roots. pH Perfect® technology continuously calibrates and regulates pH without the need for meters or harsh chemicals.