How to keep fish in the northern courtyard over winter, what to pay attention to fish in winter

Northern courtyard fish over winter mainly pay attention to keep warm.

Since the temperature is very low in northern winter, the water surface will even freeze, and if you don't pay attention to controlling the temperature, the fish will also freeze to death.

In addition, due to the lower water temperature, the fish's vitality will also decline, so do not feed it frequently, so as to avoid a large number of residual bait fell into the pool, decomposition and pollution of the water, the health of the fish caused by the adverse effects.

I, northern courtyard fish how to winter northern courtyard fish winter main attention to keep warm.

Because of the northern winter temperature is very low, the water surface will even freeze, if you do not pay attention to control the temperature, the fish will also freeze to death.

In addition, due to the lower water temperature, the fish's vitality will also decline, so do not feed it frequently, so as to avoid a large number of residual bait fell into the pool, decomposition and pollution of the water, the health of the fish have a negative impact.

Second, what to pay attention to the winter fish 1, anti-below-temperature: the first thing to do in winter fish should be anti-below-temperature, the water temperature is lower on the health of the fish have a greater impact, and even lead to its death.

If it is a tropical fish, the general water temperature should be kept above 20 ℃, the outdoor fish pond is generally not raised, can only be raised in a fish tank.

Wide temperature fish, such as goldfish, koi, etc., as long as the water temperature of 5 ℃ can live, but it is best to water temperature a little higher.

2, anti-hypoxia: winter is generally not hypoxia, because the temperature is low, the dissolved oxygen will be higher, but if you feed too much food, it will also consume the oxygen in the water, and hypoxia in winter is very dangerous, so you must use an oxygen pump to pump oxygen, while controlling the amount of feeding.

3, anti-shallow water: winter fish water must not be too little, less water, the temperature is not easy to maintain, and will increase the possibility of icing, which is also not conducive to the survival of the fish.