The correct way to change the water for anchovies, how many days does anchovies have to change the w

The correct way to change the water for anchovies is as follows:

After the water in the fish tank is all replaced, the water quality and water temperature will change dramatically, and the fish will be very uncomfortable, which will cause great harm to the fish. Some fragile fish even die. Therefore, each time you change the water to 1 3 or 1 4, you can use a hose to pump out the water in the fish tank, and then add new water to it (the new water should be changed with water that has been trapped for two days, and there is chlorine in the tap water, which is very harmful to the fish, so it is necessary to use a container to dry the water in the sun for two days to remove the chlorine in the water).

The temperature of the newly changed water is 1-2 degrees higher than that of the water in the fish tank.

Anchovies are commonly known as"Subfish", scientific name"Phoenix"It is a famous specialty of Wenzhou, it is a good product of rice and wine, because its tail fork is shaped like the tail of a phoenix, short and red, sharp and narrow long, like a phoenix's tail, so called. Anchovies are small migratory fish that usually inhabit the open sea, and in late spring and early summer they enter the river in groups from the sea to spawn at the freshwater inlet in the middle and lower reaches. In addition, anchovies are also commonly known as guppies, an ornamental fish of the medaka family native to South America.

Anchovies are found in places like Guyana, the East China Sea, and the South China Sea.

How to change the water for fish farming, let's take a look!

Guppies prefer neutral to alkaline water and do not need to change the water every day. If the tank where guppies are kept has a good filtration system that can maintain the quality of water for a long time, then the water change time can be reasonably extended. However, if these conditions are lacking, it is best to change the water every other day.

It is important to note that the new water that prevents the water from spoiling and becoming sour and prevents it from being replaced cannot meet the growth needs of guppies. Then you only need to replace a quarter or a fifth of the old water for each water change. Moreover, the new water should be raised in advance.

Direct well water and tap water cannot be used to raise guppies directly, so they must be dechlorinated first, and then used to raise fish after a few days.

To change the water for a guppy, you need to take out the old water first, and then slowly inject the new water along the walls of the tank. Note that the guppy should not be washed directly with water, as it can easily cause damage to the fish. In addition, it is also necessary to pay attention when changing the water, the water temperature difference between the new water and the old water should not exceed 2-3 degrees, and the other water quality standards should be the same or very close, only in this way, guppies can be better.

Autumn and winter once or twice a week, spring and summer two to three times a week, the specific number of times to be determined according to the turbidity of the water in the fish tank, the water quality with good filtration conditions can be appropriately reduced, and the number of times can be appropriately increased if the filtration conditions are poor, but not too often, otherwise the fish will get sick.

Anchovies are a kind of tropical fish that is relatively easy to raise, the requirements for water quality and temperature are not too high, and the adaptability is also very strong, the water temperature is above 18 can completely survive, and the whole winter is wide and does not need to be heated, but it is not very fond of swimming;

When changing the water, it is necessary to pay attention to the temperature of the new water and the old water to be consistent, this fish is small in size and mild in temperament, and it is best not to mix with other species of fish.

Causes: Frequent water changes, bacteria become infected with new water entering the fish tank. The fish was injured during the fight and the wound became infected. **Common practices of unfinished parties:

Wash and disinfect with a low concentration of potassium permanganate and salt solution, and check the situation after 3 days. Scrub the guppy body with water (or salt water) dissolved in low concentration of salt grains for ornamental fish, and see the situation after 5 days.

Anchovies generally change the water thoroughly every 5 to 7 days, and the fish food can be fed once a day.

Water change method: In spring and autumn, it is generally carried out once every half month or so. In summer, the weather is volatile, the water temperature is as high as 28 or more, and the water color is very easy to be dark, and the water quality is very turbid, so the water should be completely changed once in 5-7 days.

In winter, the water temperature drops to about 4, the goldfish activity is slow, the appetite is reduced, the water quality is not easy to spoil, and the water is generally not changed without special circumstances.

Feeding method: 1) Fish food can be fed once a day, according to each fish three fish food can be fed, fish food is sold in pet stores, ensure that the daily feeding within 1-2 hours to eat, can not be too much.

2) Feeding time: Spring and summer should be around 7 o'clock in the morning, when the sun begins to shine on the fish tank, late autumn and winter should be fed at about 8 o'clock, and in severe cold can be fed at 9-10 o'clock. Remember, you can't feed in large quantities in the evening, and even if the goldfish are visibly feeding, they can only feed in small amounts around 3 p.m.

Anchovy Profile:

Anchovy is commonly known as "sub-fish", scientific name "anchovy", is a valuable economic fish, anchovy is a migratory small fish, usually inhabits the open sea, in late spring and early summer every year in groups from the sea into the river, in the middle and lower reaches of the freshwater entrance for spawning and swimming. It is found in Guyana, the East China Sea and the South China Sea.

Habits: Anchovies are a kind of migratory small fish, usually inhabiting the open sea, in late spring and early summer every year, they enter the river in groups from the sea to the river, and swim back to spawn at the freshwater entrance in the middle and lower reaches. It is distributed near the estuaries of major rivers along the coast of China, with the Tianjin Haihe River, the middle and lower reaches of the Yangtze River, and the Pearl River estuary being the most abundant.

The production period is April and August, and the quality of anchovies in the middle and lower reaches of the Yangtze River before Qingming is the best.

Edible value: Anchovy, also known as "blackback fish", is one of the world's important small economic fish, highly distributed in the world's major oceans, in China's East China Sea, Yellow Sea has abundant anchovy resources. The anchovy body is extended, the side is flattened, 13cm long, silver-gray, the meat is delicate, and the taste is delicious.

It is often used in canned products in Western food, commonly known as "whitebait fillet".

Anchovy rearing method:

1) The water temperature and pH value should be appropriate, and the density of fish in a certain range should also be appropriate.

2) Place an aeration pump in the fish tank to prevent hypoxia in the water.

3) You can put some aquatic plants in the water, which is both beautiful and can produce oxygen, and some fish can also be used to satisfy hunger.

4) A thermometer is installed in the fish tank, and the light can be turned on to heat it when it is cold.

5) There must be a shelter on the upper side of the fish tank to prevent anchovies from jumping out.

6) As anchovies reproduce, remember to separate the mother tongue to be produced from the newborn calves.