Hydroponic cultivation is the practice of growing plants without soil. Instead, plants are placed in a substrate like clay pebbles, coco coir, or rockwool grow blocks. Some systems forego growth substrates all together and cultivate plants directly in a stream of water. There are many different hydroponic system options like deep water culture (DWC), ebb and flow tables, flood tables, and NFT systems (nutrient film technology). Hortitech Direct offers hydroponic systems for hobby growers and commercial growers alike. We have everything you need including water pumps, water aerators, benches and trays, substrates, pH/EC/TDS meters, and nutrients. You'll find all of the brands you love like General Hydroponics, Botanicare, Grodan, Eco Plus, and more!