Emerald Harvest Cali Pro Grow B (6 US gal / 22.71 L) is a premium liquid nutrient designed to support vigorous plant growth during the vegetative stage. As part of a two-part base nutrient system, it works alongside Cali Pro Grow A to provide essential macronutrients and micronutrients that promote strong roots, lush foliage, and overall plant vitality.This 6-gallon container is an ex... https://www.hydroponicstown.com/cali-pro-grow-b-6-us-gal-22-71-l