The first thing to pay attention to when raising small fry is the water temperature. Temperature change is the most likely cause of its death. Usually, the temperature should be controlled within a certain range according to the type of fish, if it is tropical fish or some wide-temperature fish, the temperature should be kept above 20 C, if it is cold-water fish, it should be below 20 C.
Raise small fry must change water regularly, but because it is more afraid of strong water quality fluctuations, so water can not be changed too frequently, and each time the amount of water should not be too large. Usually a week can be changed once, water quality maintenance is good, can also be changed once half a month, each time for a quarter can be, not more than one third.
Small fry often do not eat fish food, feeding it needs to use migratory water or cooked egg yolk. Although the migration water is good, it is not easy to obtain, cooked egg yolk is more commonly used, but we must control the dosage, feeding more easily bad water, affecting water quality and even lead to fish illness. It can be wrapped in gauze and twisted a little when feeding.
Small fish also have a relatively high demand for oxygen. If the dissolved oxygen in the water body is insufficient, it may also cause the fish to die. Usually, when the breeding density is not very high, oxygen is not needed all the time, and it can be opened for several hours every day, or intermittent oxygen.
