- mechanical filtration;
- biological filtration;
- water circulation;
The design of the internal filter for the aquarium is quite simple. The filter itself is small, consists of a pump with a foam sponge and a pump. If the sponge is very clogged and cannot be cleaned, it can be replaced. The pump is an electric motor, in which the fixed winding is hidden in a sealed enclosure, which prevents water from entering the pump.
In general, all internal filters for an aquarium are arranged according to the same principle: at the top of the device there is a pump that pumps water through the filtering material, cleaning it of dirt and saturating it with oxygen.
Choosing an internal filter for an aquarium
Before you buy a filter, you need to pay attention to the power of its compressor and filter material. The larger the volume of the aquarium, the more powerful the compressor should be, typically up to 1200 liters per hour. Most often, a foam sponge is used as a filtrate, in some filters there is a compartment in which you can put special fillers in the form of sand, stone, etc. The volume of filter material – up to 700 sq. Cm.
The most important criterion when choosing an internal filter is the volume of the aquarium itself, it should not exceed 180 liters, the limit is 200 liters. Also, when choosing an internal filter for an aquarium, you need to remember that if this type of filter can provide water purification in an aquarium with a large volume of water, then its dimensions will be too large. In this case, it is worth choosing a different type of filter.
Installing the internal filter in the aquarium
This is not such a laborious process. It is enough to fix the filter on the side or back wall of the aquarium using suction cups in an unobtrusive and convenient place. filter in the aquarium horizontally to the bottom, directing the stream up.
In order not to waste money, some amateurs prefer to install homemade internal filters in the aquarium. The advantages of this design are: low price; free choice of fillers; universal design, etc. But, unfortunately, there are much more disadvantages in this self-made filter:
- large size – takes up a lot of space in the aquarium;
- gaps remain between the elements and water seeps into the filter;
- often unaesthetic look.
Therefore, it is better to purchase a good filter and not waste precious time assembling a very inconvenient device.