Welcome to FluidsensorOnline, we sell a range of products via our eBay store mostly (if not all) from The Nutrient Company range of products. Not everything available is listed here so please check the website too. Top sellers on eBay include - Mycorrhizal fungi, Trichoderma, Beneficial Bacteria, CalMag and our extremly popular Aquarium Plant Food. www.TheNutrientCompany.com