Fig. 2. Tilapia tank and nitrification-denitrification tank. Water is pumped from the Tilapia tank to the treatment tank and returned by a siphon pipe.
Fig. 2. Tilapia tenk en nitrifikasie-denitrifikasie tenk. Water word gepomp uit die Tilapia tenk om die behandeling tenk en teruggekeer met 'n sifon pyp.