House & Garden Hydro A&B House & Garden Hydro A&B uses unique formulations specifically for run-to-waste hydroponic systems. Hydro A&B allows for rapid nutrient uptake as efficiently as possible. This powerful base nutrient has been designed to provide complete fertigation for both vegetative and flowering (generative) growth. House & Garden Hydro A&B utilizes unique formulas for hydroponic systems that are run-to-waste. Hydro A&B allows you to absorb nutrients as quickly as possible. Hydro A&B is a powerful base nutrient that can be used to complete fertigation of both vegetative (generative) and flowering growth. This is ideal for use in run-to waste systems made of rockwool or flock. Hydro A&B's base has been specifically designed to deliver all the required nutrients in easily soluble forms, using unique chelating agent. Hydro A&B balances optimised pH levels quickly, which results in faster and healthier plant growth. H&G Hydro base nutrients can only be made from liquids, and not powdered base nutrients. Hydro A&B, with its unmatched mixing technology and zero waste facility in America makes it the most concentrated and cleanest base nutrient available. Hydro A&B super concentrated formulas are extremely effective, but you should always test it to ensure that your EC is not exceeded. You can choose from 1L to 5L,5L and 10L sizes, as well as 20L. The plant can absorb nutrients quickly and efficiently. House & Garden Hydro A&B provides the perfect solution for plants and is a solid foundation for a healthy growth.