In this section, we will discuss two important processes that should be carried out in your aquarium: aeration — water saturation with oxygen and filtration from various impurities. The processes are, of course, different, but modern filters are usually equipped with aeration devices, which is why they are considered together.
The concentration of oxygen in the water is variable. At first glance, if you take a sufficiently large aquarium, plant the right amount of plants and run a few fish, then the water should self-air due to the oxygen produced by the plants. However, if you examine the oxygen content in such an aquarium, you will find its lack. This is due to the fact that the concentration of oxygen depends on many reasons.
- First, on the temperature. The oxygen content in warm water is much lower than in cool water. In addition, with increasing temperature, fish begin to absorb more oxygen.
- Secondly, on the number of plants in the tank. After all, at night the plants themselves consume oxygen and produce carbon dioxide, thus consuming a large amount of oxygen.
- Third, snails and aerobic bacteria consume a lot of oxygen. If your organic aquarium accumulates a lot of organic waste, then as a result aerobic bacteria will multiply rapidly, and the lack of oxygen in the aquarium is ensured.
To eliminate the oxygen deficiency, the water in the aquarium is aerated — special compressors blow air from the nozzles through it. Aeration not only saturates water with oxygen, but also improves the circulation of water masses, helps to equalize temperatures in the water column, increases ground flow and reduces stagnation and accumulation of waste.
It is also necessary to filter the water, especially in densely populated aquariums, where a lot of organic waste accumulates in a short time. Filtration occurs in two stages – mechanical and dry cleaning. During mechanical cleaning, suspensions and excess other particles are removed from the water, while dry cleaning of fish is removed during chemical cleaning.
There are several types of Fish Tank Filters:
- external, located outside the tank;
- internal, attached to the wall of the tank from the inside;
- bottom, located on the ground or strengthened right in it.
For mechanical cleaning in Fish Tank Filters, the following fillers are commonly used: sand, nylon filament, foam rubber and other neutral materials. For successful chemical cleaning, it is necessary for the filter to work for some time and become densely populated with saprophyte bacteria, which will decompose the waste into simple mineral substances. Bacteria colonize the filter gradually, and ideally you can take an old filter that has long been working in another good aquarium, it will already be populated with bacteria and the cleaning will be effective.
Rinse such filters need infrequently, only in the case when the accumulated debris already interferes with the passage of water through the filter.
And finally, we remind you that if your fish often float to the surface and swallow air, the water in the aquarium is muddy and smells unpleasant, you should think about changing the filter!