The SunSun CBG-500 hang-on filter is ideal for small aquariums as it is installed outside the aquarium. The filter is hung on the side or back wall of the aquarium, while the pump is mounted inside the aquarium. An adjustable spacer allows for correct positioning.

The aquarium hang-on filter can be used in aquariums with a water volume of 38 to 115 liters. Its pump performance is 500 liters per hour. The water flow can be adjusted continuously, allowing it to be tailored to the size of the aquarium. The water is first cleared of floating particles using a surface skimmer.

The SunSun CBG-500 hang-on filter with an integrated UV-C unit provides both mechanical and biological filtration in one.

The hang-on filter comes fully equipped with filter fleece, filter sponge, activated carbon, and bio-balls. The filter fleece captures coarse dirt particles, while the sponges reduce nitrate, clean the water of chemical impurities, and provide optimal conditions for the colonization of filter bacteria.

Activated carbon is used in aquaristics to bind urea and humic substances, pesticides, metabolic products, and similar residues, ensuring clear aquarium water. Bio-balls offer a large surface area for bacteria to colonize and are considered high-performance filter media, especially in large filtration systems.

A highlight of the CBG-500 is the integrated UVC unit: The aquarium water is first passed through the UVC clarifier unit. The UVC radiation from the UV lamp (power: 5 W) kills harmful algae, bacteria, and pathogens, keeping algae growth under control.