Abstract: A multi-layered aquaponics system used for cultivation has a fish tank, at least one layer of a grow bed adapted to support growth of at least one variety of plant in a direction substantially vertical to a plane of a backing element of the layer, a growth light system having at least one LED growth-light fixture disposed above the grow bed, a water supply system having a water circulation loop, and an aeration system without a power source. The aeration system includes a standpipe inside the layers of grow beds and a plurality of bell siphons positioned within the standpipe and connected to a water drainpipe.

Abstract: A multi-layered aquaponics system and an aquaponics cultivation method in an indoor vertical farming application are disclosed. The aquaponics cultivation method of the multi-layered aquaponic system involves using a submersible pump to drain water (through a supply pipe) from a fish tank, located at the lowest level, to each layer of plant grow-bed. When water in one particular grow-bed is filled up to the height of a standpipe of a Bell Siphon, water would drain automatically into a water drain pipe, which circulates back to the fish tank. The strong water current deploying at least one Bell Siphon in a vertical structure will give suitable aeration into the fish tank and emit no carbon by saving power in the aeration system.