This is for 2 bottles Each Bottle Is A 1/2 Gallon of Emerald Harvest Cali Pro Bloom- One Of Each Part A B Nutrient 1/2 Gallon Bottles Cali Pro: USE CALI PRO PROFESSIONAL 2-PART NUTRIENT SERIES TO: Establish a simple, hassle-free yet complete feeding program. Get professional results for novice and expert growers alike. Feed simply?just measure and pour in equal portions. Spend less time measuring and tweaking the feeding program and more time harnessing the full genetic potential of plants with Cali Pro Grow A B and Cali Pro Bloom A B?Emerald Harvest?s easy-to-use 2-part base nutrient series. Cali Pro is a nitrogen-rich fertilizer that nourishes high-yield, indoor-grown crops with the essential elements they need to develop strong stalks and stems and support a robust harvest. Rich in nitrogen, phosphorus, potassium and other essential nutrients like calcium, magnesium and sulfur that plants need for vigorous fruiting and flowering, Cali Pro also contains trace elements such as chelated iron, cobalt, manganese and zinc . With Cali Pro?s simple feeding program?just measure and pour the A and B parts in equal portions?Emerald Harvest helps experts and novice growers alike achieve harvests anyone would be proud of. Use Cali Pro Grow A B during the vegetative stage and Cali Pro Bloom A B during flowering.