The best is Mills

Mills Nutrients is designed from the ground up for performance, versatility, and ease of use.  Made in the Dutch tradition of a two part base along with additives that provide your plants with everything they need and nothing they don’t; Mills is a pioneer in the field of bio-mineral plant nutrients, utilizing both synthetic and organic sources to optimize growth rates, yield, flavor, and aroma. Years of testing in soil, coco-coir, and hydroponic systems; in sterile systems or with beneficial biologics; in professional greenhouses and with hobbyist growers alike have led to a complete, easy to use line of products of unprecedented quality, providing all the nutritional elements your plants need with any growing method.