Boyu YT-9000 Bio Filter is a complete all-in-one biological box filtration system designed for medium to large fish ponds of up to 9000 litres. Featuring a more powerful 43W pump delivering 2000 litres per hour and a stronger 11W UV steriliser compared to the YT-6000, the YT-9000 provides superior water circulation, biological filtration and UV sterilisation for larger and more heavily stocked fish ponds, making it the ideal upgrade for Nigerian fish farmers with bigger pond systems.