Water circulates through the aquaponics system by first being pumped from the Base up into the Grow Bed (via the Water Pipe incorporated into the Fish Tank) with water entering the Grow Bed through the Water Inlet. The Grow Bed gradually fills with water until it reaches a level whereby the auto-siphon contained in the Grow Bed trips and then drains all of the water in the Grow Bed into the Fish Tank - at which point the siphon process stops and the Grow Bed begins to fill with water again.
The water level in the Fish Tank remains constant despite the additional water entering from the Grow Bed due to the Overflow Tube in the rear of the Fish Tank returning surplus water to the Base - with the water level in the Base always sufficient for the Pump to remain positively charged with water.
The action of the water being siphoned into the Fish Tank and overflowing into the Base causes oxygenation of system water for both fish and plants.
A feature of the Aquaponicals are that the Grow Bed can be simply lifted off the Fish Tank and replaced without undoing any plumbing due to the Water Pipe in the Fish Tank fitting snugly to the underside of the Water Inlet incorporated into the Grow Bed with the aid of the Gasket.
The Feeding Tube in the Grow Bed allows for fish feeding without removal of the Grow Bed. An Overflow Collar around the top of the Overflow Tube prevents fish and fish food leaving the Fish Tank which makes this perfect home aquaponics system.