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How many live aquarium fish?

First of all, the lifespan depends on the type of fish. There is an approximate pattern associated with size of fish: small fish don’t live long, from one year to five years; the fish are of medium size (5-10 cm) up to 10-12 years; the big fish from 15 years or more. For example, astronotus, cichlasoma, gold fish, piranhas can live for 25-30 years, often the owners, wishing to renew the aquarium, changing the inhabitants. Very large fish, catfish, sturgeon, carp are able to survive person. The lives of many ikromechuschie toothcarps fish (e.g. Nothobranchius) is limited by the availability of water. These fish live in puddles, and the entire cycle takes up to drying of the reservoir, drought tolerate only caviar. Begins the season of rains starts egg development. The life of such fish is limited to 2-6 months (depending on species). good conditions aquarium do not help them.

The article mentioned that in the aquarium fish can live longer than the statistical natural age. This is due to the absence of predators, the spontaneous course of disease, stable environment, constant availability of food (unless, of course, it’s all so). But many of these things and carries negative consequences. Every breeder strives to grow, as more fry from a litter. Of course, the most neisrashodovannoe in the early stages of development (eggs, larva, fry). but this percentage, in comparison with natural, not great. As you know, diseases and predators, destroy the weakened, defective individuals, removing them from the gene pool. His “defective” genetic information, these fish will not give to anybody. In aquaculture these factors are absent (or almost absent). survives the most, including those with hidden defects that may manifest later. For example, in the aquarium OK, fish are young and healthy, but was found a corpse. In his study of parasitic organisms is not detected, it is most likely a consequence of the absence of the above factors, in nature this fish would have died much earlier. So, if found unreasonable a corpse, it is, of course, to guard, to carefully examine the other inhabitants (this may be the beginning of the disease). to check the temperature, etc. but much should not be upset; it happened because of what was going to happen. The corpses should be removed immediately, avoiding being eaten by the other fish.

There is temperature dependence. Fish are animals with a variable body temperature (usually say “cold-blooded”), their temperature is approximately equal to the temperature of the water. The metabolic rate of the fish depends on the temperature, the higher it is, the more intense metabolic processes. And hence shortened lifetime, the fish like it faster live. It though slightly, but still affects.

To reduce the lifetime of the fish can incorrect feeding. Harmful as underfeeding, fish just don’t have enough energy for growth and activity, and overfeeding, but overfeeding is more harmful. And any adverse conditions will reduce the duration of this content.

With age the fish get the maximum saturation of color, they for a long time can decorate the aquarium, but it should be remembered that they are more vulnerable to diseases and sensitive to other adverse influences.

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