In a "water culture" hydroponic system, your plants sit in an aerated nutrient solution. That means your solution will have air bubbles pumped into it to provide oxygen to the plants' roots. The system we're offering holds 6 plants. It's great for getting started because it has fewer parts than more complex systems and it's perfect to just set on a tabletop by a window.
Here are the components we'll provide you with:
- 34 Qt. HDPE Container, measuring 21"W x 15"L x 7"D. We use HDPE because it's a high-quality, safe plastic that doesn't leech any chemicals or BPA into your system.
- Air Pump + Air Stone + Airline Tubing (for aerating the nutrient solution)
- 6 Grow Cubes (for starting seeds)
- Six 3" Net Cups - these are the individual containers your plants will sit in.
- Hydroton (clay pebble growing medium, for filling your net cups)
- Polystyrene Foam "Raft" - This floats on top of your nutrient solution, and has 6 holes for the net cups to sit in. We use polystyrene because it's a safe foam that resists mildew and won't leech any chemicals into the solution.
We have a photo of this system on the project page. And here's a webpage that goes into detail on how to build a similar one: http://www.hydroponics-simplified.com/raft-lettuce.html. The system we provide is similar but will be made of higher-quality, safer components all around.