I have STOPPED using the nutrient tablets that come with the seed kits and have started using ONLY this! Not only does it keep them beautiful and shiny, but the flavor of my harvest is astounding. I have 4 aerogardens. Just for an experiment I decided to use the Aerogarden nutrient tabs on one and this on the rest. Within a month my one with the tabs was starting to fade and die. I poured out the water and put this solution (mixed of course) in and within a week...A WEEK..my plants were green and shiny healthy!