Flowering plants require higher amounts of phosphorous (P) and potassium (K) to increase flower bulk and support high-metabolic activities. Athena Pro Bloom contributes balanced levels macro and micro-elements including sulfur (S) used for increasing potency and flavours. Benefits Balanced NPK and essential microelements (when used with Pro Core); Fully soluble dry fertilizer, no particulates or sediment; Works with any dosing system: Dosatron, Netaflex, Rhythm; Mixes completely at room temperature; Low heavy metal content; Ideal for mixing stock tanks and compatible with all dosing systems. This large-grind mix is 100% soluble and will not clog irrigation systems or leave sediment in reservoirs. How to use Always use in combination with Athena Pro Core. Measure by weight, not volume. Do not combine in dry or concentrate forms. Stock Tank: Mix at most 1.10kg per 4 liters of water, agitate well until dissolved. Dose at a rate according to desired solution strength. Reservoir: For every 1 gram of Pro Bloom use 0.6 grams of Pro Core. See dosing chart for target EC mix rates.