4. Aquarium Hydroponics Raft
This is a very cool project to get your feet wet in the world of hydroponics. It is also a great way to get your kids hooked to the field.
As the name suggests, you will need an aquarium fish tank to make this work. This system can be used to grow small beans or even a single large lettuce.
Along with the usual ingredients like nutrients, water, and plants, you will need a raft of barge fashioned out of foam. The system can be passive or active, using pumps and electricity.
5. PVC NFT Hydroponics System
Large 4 inch PVC pipes can be used to create your homemade hydroponics system. In this plan, the plants are placed in cups which are arranged in holders drilled into the pipes.
The system is watered using a reservoir and pump. This is a closed system, with the water circulating between the pipes and the reservoir.
This plan is ideal for growing a lot of small plants within a small area. The basic system can house anywhere from 20-40 plants.
This system can be placed indoors or outdoors. If indoors, grow lights are of course essential.
The hydroponics method used in this plant is called NFT. It is an excellent plan for growing plants like tomatoes.