In this system, plants are grown in a grow bed filled with a soilless medium such as gravel, clay pellets or coconut coir. Water is pumped into the grow bed, which then drains back into the fish tank.
In this system, plants are grown in a grow bed filled with a soilless medium such as gravel, clay pellets or coconut coir. Water is pumped into the grow bed, which then drains back into the fish tank.