SUNSUN HW-504B Aquarium Out Side Filter

The SunSun Aquarium External Filter HW-504 B can be easily connected to aquariums with a water volume of up to 400 liters. So the operation of large-sized aquariums becomes an simple excercise. The pump capacity is 1000 liters per hour. The aquarium external filter provides for a high flow rate, however it operates quietly. The rubber stands provide for a optimal vibration reduction.

The super quiet aquarium filter technique of the SunSun HW-505A aquarium external filter is suitable not only for freshwater aquariums but also saltwater aquariums.

The aquarium filter is delivered with filter media for the four filter stages. The filter baskets with their practicle handles can be filled individually with the filter media. In this respect, please note that the filter media is graded from coarse to fine. The overhead 1st filter stage, the so-called pre-filter retains coarse dirt efficiently and extends considerably the service life of the biological acting filter material that is located on the underlying filter levels. The pre-filter can be easily removed and cleaned.

The highlight of HW-504B is the integraged UVC-unit.
The water flow within the aquarium filter makes that in the water first passes the UVC-clarifier unit. Due to the UVC-radiation of the UV-lamp, all harmful algae, bacteria and germs are destroyed and the algae formation remains under control.

Normally, the UVC-clarifier provides for clear aquarium water within a short period of time. You achieve the best results with this combination of an UVC-clarifier an a biological aquarium filter.
UVC-pond clarifiers irradiate the water in a flow-through reactor with UV rays.The UV-C radiation destroys the swimmig algae. The algae agglutinate to large particles and ca be easily removed by means of mechanical filtering.
Our UVC clarifiers modify the tertiary and the quaternary structure of the algae proteins by means of UV-radiation. This means the destructions of the algae which can be removed from the water by aquarium filters.

The life span of the UVC-light source varies between 7.000 and 10.000 operating hours. We recommend to change the light source and to clean the quartz glass of the UV-lamp each year.

The flowing water is purged of harmful bacteria and germs. The reduction of germs has no negative effect on the aquarium's microclimate because bacteria settle themselves on stones, the filtration surface and in the whole aquarium system for reducing pollutants and they can reproduce themselves. The UV-lamp can maintain the total microbial content of the aquarium water in near -natural proportions.

Ocasionally you can hear the argument a UVC-clarifier is unnatural. Although this is right in principle, the statement is not convincing as a counter-argument, because from this point of view every aquarium filter or the whole aquarium is "unnatural". Fish kept with a clarifier are said to grow soft and fall ill immediately after being put into other water. Firstly, that is not true, and secondly it could also be argued that a biological aquarium filter is harmful and a a relatively high nitrite content would contribute to the fish's strengthening. Quite the opposite. In fact a UVC-clarifier helps balancing the natural biotope of the aquarium environment.