GRECH CBG-500 Hang On Filter with UV:
The Grech CBG-Series Hang-On Back UV Filter comes with a diverse and unique design. While being suitable for freshwater and saltwater aquariums convenient for daily use. The filter is beautifully crafted to allow a simple installation and silent operation. Water flow can be control accord to your aquarium needs. The CBG-Series has a biological and mechanical filtration and comes with active carbon and bio media. The CBG-Series also features a 5W UV Sterilizer which can be turned on and off. The UV Sterilizer helps in eliminating algae, keeping aquarium water clear, and aids in the health of aquatic animals from free-floating parasites. The controllable surface skimmer can reduce surface oil from your aquarium tank.
Important Note: Water level of the tank should be always above the motor of the hang on filters motor to ensure auto priming. Otherwise if the power goes off the motor will stop functioning and once power is restored, automatic priming will not happen.