Translations:AY Honors/Hydroponics and Aquaponics/Answer Key/47/en
From Pathfinder Wiki
Deep Water Culture: Consists of a water reservoir, containers with which the plants are suspended into the water and a way to keep them on the surface, and an air pump and air stone. The plants are suspended in such a way that the roots sit directly in the water. The air stone is put in the water under the plants to aerate the water to ensure that the plants don't suffocate or drown. This is one of the most common system setups.
