Athena Pro Line Bloom is used to increase the flower volume and to support high-metabolic activity, flowers require greater amounts of potassium (K), and phosphorous (P). Athena Pro Bloom provides balanced amounts of macro- and micro-elements, including sulfur (S), which can be used to increase potency and flavor. When used in conjunction with Pro Core, balanced NPK and vital micro elements No particulates, sediment or toxicity. Compatible with all dosing systems: Netaflex and Dosatron Mixes at room temperature Very low heavy metal content Mixing stock tanks is easy and it works with any dosing system. The large-grind mixture is 100 percent soluble, so it will not clog irrigation pipes or create sediment in reservoirs. Pro Line should not be mixed directly in the reservoir. Instead, we prefer to make Pro Line into a concentrated liquid and use the liquid to mix your batch tank. For a Stock Concentrate, Nutrient Preparation steps: Make sure your measuring container has precise gallon markings. Half of your stock tank should be filled with water. Mix the granules slowly into the water, stirring occasionally. Once it is dissolved, add more water to get rid of any clumps. You can add more water to get it up to 12.5 gallons. Mix vigorously until the granules become solubilized. Combine your BATCH RESERVOIRS: Use the 2 lb/gallon chart to determine how much you need for your desired EC. Ingredients Potassium Phosphate, Potassium Sulfate, Magnesium Sulfate, Iron DTPA