How to maintain stable aquarium water quality when keeping ornamental fish? Hangte Aquarium offers tips
Good water in the fish tank: when ornamental fish are kept long-term, water quality will be damaged, causing fish to get sick, water to become cloudy, and so on. Even if timely remedies are made, it is still quite troublesome. So how can the balance of aquarium water quality be well maintained?
After setting up the tank, it is generally best to gradually increase the stocking quantity, because the biological system at this time is not yet stable and its ability to resist shocks is relatively poor, so problems are likely to occur if it is not handled well. A relatively common problem is insufficient capacity of the filtration system, or stocking density and feeding amount being too large, so that the amount of organic matter discharged exceeds the system's self-purification capacity, and the water body begins to become eutrophic.
The solutions are, first, to strengthen biological filtration (physical adsorption and other auxiliary means can also be used in combination), and second, to reduce stocking density and feeding amount. In addition, dilution through water changes is the simplest and most effective method, but relying excessively on water changes to maintain water quality will reduce the stability of the system.
The stability of water quality depends to a large extent on the stability of the micro-ecosystem. The stability of the micro-ecosystem is mainly shown in the following aspects:
1. It can adapt to the pressure of short-term external changes, maintain its ability to survive, and maintain the integrity of the system's collective traits;
2. It has resistance and repair capacity against environmental pressure. When environmental pressure does not exceed a certain range, the system can resist this pressure and remain stable. If environmental pressure exceeds the range it can resist, due to the death or loss of activity of some microbial groups, part of the system's functions are lost. At this time, the remaining part of the system can again form a complete ecosystem with newly appearing groups, that is, repair is carried out;
3. It can make adaptive adjustments according to environmental changes, such as periodic adjustments following seasonal changes.
Stability is related to the diversification of microorganisms. In a stable system, the types of microorganisms show a high degree of diversity and will not affect the overall structure because of changes in individual populations. Only when the types of microorganisms reach a certain level and form a relatively balanced structure can the system achieve relatively high stability.
It is hard to say exactly how long it takes for the system to become stable after the tank is set up. It may be one month, or several months, and some aquariums may even remain in an unstable state for a long time. The factors affecting system stability are very complex. The more common ones are a weak biological filtration system and insufficient load capacity. In addition, casually increasing the number of fish or frequently changing species; feeding at irregular times and in irregular amounts; not changing water in time; excessively cleaning filter media; turning the filter on and off intermittently; and casually using medication in the tank and other improper practices will all hinder the stability of the system and may even cause the system to collapse.
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