Athena PK Athena PK can be used as a balance bloom booster in conjunction with our Bloom fertilizers. This liquid supplement is intended to be used during the late-to-mid-flowering period. Athena PK, a low-nitrogen booster, provides the additional Phosphorus (and Potassium) that high yielding plants need for maximum production. Many PK boosters increase the amount of these elements, which can cause a series of problems such as a decrease in Calcium and Magnesium. To boost essential oil production and terpene production, it is important to have a balanced elemental bioavailability in flowering. Applicant Rates In the week 3 flowering period, add between 3-10 ml to each gallon of water. For specific recommendations, see Feed Schedules. The Best Practices Before Using, Shake Well. Make Sure To Use Clean Measuring Tools. Regularly Monitor EC And Adjust Based On Crop Stage And Growth Stage. After Mixing All Fertilizers, Adjust PH To The Desired Levels. Keep It In The Original Container At 45°F To 85°F.