Surely everyone, even a novice aquarist, knows that in order for all biological processes in an aquarium to be stable, it is necessary to take care of it as often as possible.
Most often, both novice aquarists and seasoned professionals prefer aquariums with a volume of 60 liters or more. Such a volume is considered optimal for a home aquarium, since it allows you to place in it a sufficiently large number of fish, aquatic plants, shells, snags, underwater castles and other items.
Beneficial features
To ensure that the water in the aquarium always remains clean, it is customary to use an external attachment filter, or simply an external filter. Such a filter, due to its characteristics, is by far the most effective means for purifying water inside an aquarium of any size - from the smallest (less than 40 liters) to the largest.
The external filter has a mechanical, biological and chemical protection degree. This device, unique in its functionality, easily copes with the waste of life of the inhabitants of the aquarium. In addition, a special type of bacteria lives inside the ceramic parts of the external filter housing, which processes most of the substances undesirable for the aquarium ecosystem. Also, this filter absorbs all kinds of harmful substances that accidentally got into the aquarium.
Efficiency
The external aquarium filter, due to its unique capabilities, purifies water much more efficiently than the internal and hinged one. In addition to the cleaning itself, this device can create a current inside the aquarium, which affects the health of the fish in the most favorable way, creates a biological balance.
Based on the design features of external filters, it is not at all necessary to service them often by changing the filter elements. However, there is another reason why an aquarist purchases an external filter. The fact is that this device absolutely does not spoil the design of the aquarium and does not take up space in it, which is so necessary for underwater inhabitants.
An external filter is somewhat more expensive than its competitors, but every self-respecting aquarist will still, sooner or later, make a choice in its favor. Well-known manufacturers: Aquael, Atman, Eheim, Hagen, Minjiang, Resun.
Right choice
The first thing to look for when choosing an external filter is its tightness. Since the filter is located outside the aquarium, a lot depends on the reliability of all its connections. For example, poor sealing of all hoses and filter tubes can lead to a flood in the apartment.
Another important point when choosing an external filter is its attachment. They mean clamping nuts, with which all kinds of hoses and pipes are mounted, as well as latches on the filter itself. These parts should not be "flimsy", they should be made of high quality materials and securely fix all connections and the filter itself.
