Mills Cocopeat Mills Cocopeat is pH-neutral with a light consistency that encourages strong and extensive root systems for strong and healthy plants with big yields. Cocopeat provides the optimal balance of moisture and aeration. Easy to use Mills Cocopeat is easy to use. Set it, forget it and benefit. The ultimate medium to maximize your plants' growth. Optimal balance of moisture and aeration Mills Cocopeat provides the optimal balance between moisture and aeration. Additional nutrients needed EC value of 0, important to follow the nutrient growth chart right from the start.