The global interest in aquaponics has increased since the industry became a mainstream farming technology in 2010. Several universities are involved in aquaponics research and a host of companies offer products for sale or provide training courses. As a result, the farming of fish and soilless plant crops in a closed, circular system has been refined and is now well understood; the commercial case for aquaponics is clear.
There are different forms of aquaponics, but in the simplest type, water circulates
