I googled "hydroponic potatoes" and I kid you not, the first words in the results were "Potatoes are one of the easiest crops to grow with a hydroponics system"

I googled "hydroponic potatoes" and I kid you not, the first words in the results were "Potatoes are one of the easiest crops to grow with a hydroponics system". I've also had grown and eaten hydroponic potatoes myself and they were great.