Give Your Plants Reliable Full-Bloom Nutrition pH Perfect Sensi Coco Bloom B is one-half of pH Perfect Sensi Coco Bloom – a 2-part base nutrient intended for the bloom, or flowering, phase. pH Perfect Sensi Coco Grow uses pH Perfect technology, constantly maintaining an ideal pH in your medium, so you’ll never have to calibrate or adjust your pH again. It’s also designed for optimal results in coco coir. The pH Perfect Sensi Coco Series is our mid-range base nutrient series, more advanced than pH Perfect Jungle Juice, but not quite as expensive or sophisticated as pH Perfect Connoisseur. It balances most of the premium benefits of pH Perfect Connoisseur, with a more affordable price point.