Advanced Nutrients’ pH Perfect Sensi Coco Bloom Part A is a nutrient designed for maximum performance in Coco Coir substrates. This part of the nutrient is designed to provide your plants with all the macro and micronutrients they need to reach their full potential. The pH Perfect Sensi Coco Bloom Part A formula is a special blend of high quality ingredients that are specifically designed to target your plants’ specific needs. This formula is independent of pH, making it ideal for Coco Coir substrates. pH Perfect Sensi Coco Bloom Part A contains all the essential macro and micronutrients such as nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), manganese (Mn), and zinc (Zn). Additionally, it also contains a variety of essential trace elements such as boron (B), copper (Cu), molybdenum (Mo), and sulfur (S). This formula will help ensure maximum yields and performance in Coco Coir substrates. It is best used in conjunction with the pH Perfect Sensi Coco Bloom Part B, to ensure maximum results. This product comes in 1L size.