Medaka is a kind of ornamental fish, and it is necessary to understand their habits and characteristics before breeding them. They are cold-water fish, suitable for living in relatively low water temperature environment. Generally speaking, the water temperature should not exceed 20 degrees, otherwise it will affect their growth and development.
Therefore, in summer, the water temperature may be relatively high, which is not suitable for their growth, so some artificial cooling measures need to be taken. In addition, as a cold-water fish, medaka is very sensitive to changes in water temperature. Therefore, in order to make them survive better, we must pay attention to the flow rate and water exchange when changing water, so that the water environment can not change too dramatically.
As mentioned above, medaka fish is a cold-water fish, which is suitable for living in a water environment with lower water temperature. Therefore, it is not too afraid of cold, its cold resistance is better. However, if the temperature is too low, below zero or even the water is frozen, then measures need to be taken. Specifically, for the fish tank placed indoors, there is basically no problem. Especially where there is indoor heating, the water temperature is more appropriate, and there is no need to take artificial heating measures. However, for outdoor fish tanks and outdoor fish ponds, sometimes some heating measures need to be taken. Especially in some northern areas, the outdoor temperature in winter is very low, which may affect the survival of medaka fish, so it needs to be properly warmed up.
