Scavengers reproduce at an alarming rate and also feed on the eggs of other fish. Therefore, when scavengers reach the river, they will quickly breed a large number of scavengers to occupy the river, which will also affect the reproduction of other fish and eventually kill all other fish in the river. In addition, it has no natural enemies, so it will destroy the species balance in the natural environment. Therefore, the scavenger is not suitable for wild release and can only be used as a cleaner in domestic fish tanks.
If the sweeper leaves the water, it will breathe through its gills, which can reduce its water consumption in a short time, and try to wrap itself in soil containing water, so that the sweeper can survive for a while even if it leaves the water, but if the sweeper can't find water, it will be exposed to the sun and become dried fish, and if it is found in time, it can be stored in water.
However, if the street sweeper is dehydrated seriously and for a long time, he will surely die of thirst like a human being. No matter how tenacious the vitality of the street sweeper is, it can't resist the forces of nature. After dehydration, the sweeper not only can't breathe, but also can't eat, and even the water in his body has evaporated. If there is no water in the sweeper's body, the metabolic activity will stop and he must die.
Therefore, although the sweeper hopes to preserve dried fish, it must ensure that it has not been dehydrated for a long time, so it is still possible to preserve it.