Filtration efficiency is not determined solely by the flow rate Effective filtration is determined by the appropriate combination of flow rate and filter capacity. The comparison includes the actual flow rates and capacities of the Super Jet ES-300 filter and three other models available on the market. An aquarium that is to function healthily for a long time requires an efficient filtration system. The proper water purification process is carried out by bacteria that colonize the filter inserts. The simple conclusion is that the more inserts the filter holds, the better. In addition, the large filtration volume allows for the combination of biological media with additional activated carbon and protects against excessive decreases in filtration efficiency when replacing or rinsing some of the inserts. However, the size of the filter alone will not ensure the proper development and functioning of microorganisms. An equally important factor is ensuring the largest possible surface area through which oxygen-saturated water flows. Therefore, a device that combines large volume with appropriately selected flow rate is necessary. Super Jet filters are created based on the assumption of maximizing the efficiency of bacteria. When buying commonly available devices, it is easy to obtain information about their volume. Manufacturers also provide the flow provided by the pump, but most often it is a value for an empty filter, not taking into account the resistance of the cartridge. Measurements show that the actual flow is usually much lower than the nominal one. A good indicator of the flow is the frequency of filtering all the water in the aquarium within an hour. ES 300 It is characterized by the smallest flow drop and the largest filter capacity in its class (3l). The housing made of stainless steel is very durable. When installing the filter in an aquarium smaller than 45cm, it is a good idea to reduce the flow using Lily Pipe Spin. Compact external filter placed behind the aquarium by Company A The device is designed to be placed behind or next to the aquarium. The pump is located inside the tank so it does not require priming. The flow can be adjusted in the range of 0.9-2.7 l/min. The disadvantage of the filter is the internal pump, which can make the aquarium look ugly. External filter by Company B A basic, classic model of a canister filter. It is characterized by a relatively small flow drop (right after the ES 300). Within an hour, it is able to filter 6 times the volume of a 45cm aquarium. Despite the relatively large dimensions of the canister, the volume of the inserts is only 1l. A compact external filter placed behind the aquarium by Company C A filter with a submersible pump placed at the level of the aquarium. The filter is very small so it does not ensure high filtration efficiency even in a small 45cm aquarium. The low power of the pump prevents installation much below the aquarium.
© foto: Takashi Amano, AQUA DESIGN AMANO CO., LTD.
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