4-0-0. 0-4-5. Guarantee yourself a more consistent, maximized yield with this pH perfect 2-part base nutrient for coco coir! Sensi coco bloom is a two-part base nutrient designed specifically for coco coir growers to help aid in the delivery of essential nutrients to your plants during the most vital period of their bloom phase. The pH Perfect guarantee means you'll never have to adjust or tweak your pH when using these products.