Video credit: Marleyi Acuna Torres (Colombia) Description: Marleyi Acuna Torres and Abdel Rahman El Gamal (Founder of the video channel)
The video was filmed in a red tilapia farm which uses biofloc technology. The farm is located in Zulia Notre de Santander (Colombia). The farm receives its water from a rain water reservoir. The management of this particular farm adopts three phases (fry, growing and fattening). The whole cycle is 6 months. In the first phase, red tilapia fingerlings are stocked in circular tanks of 12-m diameter and 120 m3 of water volume. The stocking density in this phase is 100 fingerlings/m2. As the average size of the stocked fish reach 150 g, they are passed to larger tanks of 15-m diameter with 1.2 m depth and a volume of 200 m3. The stocking density during this fattening phase is 60 fish/m2. The aeration is performed by blower/diffuser system. This system has neither water circulation nor filtration except the removal of excess solids through sedimentation tank. As expected, the biofloc technology plays an important role in enhancing the system productivity as well as in the reduction of commercial feed. In this particular farm, the average feed conversion is 1.3 feed: 1 fish. The farm has monthly production of 4 tons of red tilapia with an average size of 350 g.