Video: How Long Does An Aquarium Live?
This question worries, perhaps, any aquarist. It is impossible to answer unequivocally by naming a certain number of years, since the duration of the aquarium's existence is determined by many factors, including hydrochemical processes taking place in water and soil.
The aquarium is a micro-model of the hydroecosystem. And, despite the many differences between a natural pond and an aquarium, the basic laws of development are common to them, and the processes are similar in many respects.
Aquarium. Marine Aquarium at Chistye Prudy
Roughly the law of ecosystem development can be formulated as follows; any ecosystem cannot exist forever; after passing through the conventionally identified three stages of development (formation, stable development, degradation), it passes into another ecosystem.
For clarity, we will consider these processes using a conditional lake as an example.With the origin of life in it, there is a constant accumulation of bottom sediments associated with the death of animals and plants. Part of the sedimentary rocks is brought in by flowing rivers and rains, which wash away various substances from the land. The lake is gradually shallowing, the concentration of nutrients in it increases. The population of the lake is becoming "richer", but not due to the formation of new species, but due to the intensive growth in the number of dominant forms. At the same time, representatives who are most demanding on the purity of water fall out of the flora and fauna. The lake becomes even more shallow, underwater plants of the coastal zone (nymphs, potamogetones, hornworts, etc.) grow towards the center until they cover the entire area. Then the emergence of emerging plants (reed, reed, cattail, etc.) begins and a gradual swamping of the reservoir occurs.Thus, a transition is made from one ecosystem (lake) to another (swamp).
Of course, the phenomena in real life are very different from the above diagram. For example, at certain stages, the processes can be interrupted and proceed further in the opposite direction. However, on the whole, the development of an ecosystem is a definitely directed process that obeys the laws of nature. The development of the home ecosystem - the aquarium - proceeds in a similar way.
In any ecosystem, various types of energy are continuously supplied; solar (in an aquarium - the energy of lighting lamps), mechanical, chemical, etc. In the course of various ongoing processes, energy is consumed, transformed or accumulated (for example, in the form of energy of chemical bonds). For the normal (balanced) existence of the ecosystem, it is necessary that the incoming energy be equal to the consumed and carried away. Such equality occurs only in ideal systems. In a real situation, it is almost impossible to balance the flow of energy with its costs.
Usually an aquarium is considered an isolated system. However, this is not the case. The aquarist constantly interferes in his life: he regulates the temperature, the chemical composition of water, gas exchange, determines the quantitative and qualitative composition of the inhabitants according to his taste.
Consider how these three periods of ecosystem development in an aquarium proceed. So, the first stage is the formation of the system. In a natural reservoir, this is a long period. Aquarists try to pass it as quickly as possible. Practice shows that it lasts from a week to two months. This period is important, since the foundation of its further existence is laid in it. At this time, soil is placed in the aquarium, water is poured. Usually, an intensive development of microorganisms is observed, since, on the one hand, fresh water is rich in nutrients, and on the other, the first settlers have no enemies and competitors. Usually, after 2-3 days, the water acquires a milky color due to the active multiplication of bacteria. After a few more days, its transparency is restored.To speed up these processes, it is usually recommended to add a little water and a handful of soil from a healthy aquarium with an established regime.
Related article Installing the aquarium
5-6 days after laying the ground and filling the aquarium with water, plant the plants, and the next day start the fish (you should not put the fish in the aquarium, since the plants need a source of carbon dioxide).
The plants, after a slight shock caused by the transplant, begin to grow. After about a week, you can add a supplement containing biogenic trace elements to the water. At first, the maximum possible number of fish should be kept in the aquarium. Over time, after a sufficient amount of organic matter has accumulated in the soil, the number of fish can be reduced. By this we maintain the energy balance, since more and more energy will be released as a result of the decomposition of accumulated organic particles. With an excess of organic matter in the aquarium, it becomes necessary to reduce their amount, for which they remove rotting leaves and debris and regularly change the water.