Spray-N-Grow is not a fertilizer, hormone or hydroponic nutrient solution. Spray-N-Grow is a micronutrient complex made of naturally occurring elements that are essential for plant growth. Fertilizer and nutrient solution provides your plants with major elements necessary for plant growth. Some contain a few additional elements. Spray-N-Grow provides your plants with essential minor elements (micronutrients) not provided by your hydroponic nutrient solution.There are many other micronutrient products that contain some or all of the same type of micronutrients as Spray-N-Grow, but none have been able to replicate the balanced formula that causes the micronutrients to interact with one another as they do in Spray-N-Grow. The ingredients in Spray-N-Grow are blended to act as one synergistic ingredient when activated to give your plants more, bigger, and better blooms, vegetables and fruit.