What are the causes of goldfish death?

Goldfish can survive in a wide temperature range, and can still maintain life under the ice in winter. As long as they are not exposed to the sun, they can live normally in hot weather, but they can't change the water temperature sharply. If the water temperature changes sharply above 4 degrees, goldfish will get sick and even die.

Goldfish can't change too much water at a time. If the water quality changes suddenly, it will lead to the water quality discomfort of goldfish. Goldfish has adapted to the original water quality. If the water quality changes suddenly, goldfish will get sick or even die suddenly.

If your goldfish is kept in an open-air fish pond, the rain will fall into the fish pond to cool down, which is a great threat to the life of goldfish.

The sudden death of your goldfish is probably caused by the sudden change of water quality and the sudden drop of water temperature.

The predecessors of goldfish breeding have long had the experience of "raising fish first and then raising water", which shows that the quality of water quality will directly affect the normal growth and development of goldfish. The purpose of changing water is to remove dirt (garbage, fish manure, surplus feed and stale impurities), keep the water clean, adjust the water temperature and increase oxygen in the water, thus stimulating the growth and development of goldfish.

If you want to raise goldfish well, you must have a preliminary understanding of fish culture water:

1. Unpurified water

Refers to tap water or well water that has just been discharged and has not been dried. Its water temperature is often quite different from that of fish ponds (tanks), and contains more chlorine, which is very harmful to goldfish.

2. Fresh water

It is tap water, well water or spring water. After drying and standing for about 2-3 days, the water temperature is equal to or similar to that of fish pond (tank) water.

3. Chen shui

It is the dirty water with feces and dirt at the bottom of the fish pond (tank). Including the water supply that has not been replaced for a long time in the pool (cylinder).

4. Old water

It is the general name of clean water in fish ponds (tanks) that is tender green, green, old green or brown green. Among them, light green water is the best. There are many green algae floating in the old water, which is also a good auxiliary feed for goldfish. This water decomposes less organic matter and more dissolved oxygen. It is often used to raise fish in tender green and clean old water. The fish bred have the largest appetite, strong body, bright color and rapid development.

Step 5 return to clear water

If it is found that the old green water in the original pool (tank) suddenly turns into clear water, and a lot of green algae are precipitated at the bottom of the pool, this phenomenon is called returning to clear water. This kind of water is easy to cause fish diseases and needs to be completely replaced.

(1) Under normal water exchange conditions, especially in hot summer, it is only necessary to gently suck out the feces and dirt at the bottom of the fish pond (tank) together with the old water every day with a hose to remove the dust and floating feces on the water surface, and then slowly inject isothermal new water along the wall of the pond (tank) to keep it. This method of changing water is not easy to hurt fish, simple and safe, and is most suitable for family fish tanks or small ponds.

(2) Partial water exchange is mainly carried out in two situations. In one case, in the hot summer and early autumn, the feed water in the fish pond (tank) has been changed for several days, but the water turns green quickly (due to a small amount of feed), and the water quality is still clean. Therefore, in order to prevent goldfish from scalding their tails, all the goldfish in the pond (tank) can be fished out, and then the water in the pond (tank) can be rotated into a spiral shape, and the pond (tank) can be put to rest for a while.

Another situation is that the water in the pool (tank) has only been changed for a few days, and the color of the water is still good. However, due to excessive feeding and floating head, emergency measures must be taken. The method of changing water is the same as that mentioned above.

If it is a big fish pond in a fish farm, you don't need to fish out the goldfish, but enclose the fish with a folding screen, and then gently rotate the water in the pond with a fishing net for dozens of seconds. When the water is still for a while, start the drain gate to drain the water slowly, or suck up the surplus fish and insects, feces and old water in the center of the pond (tank) with a straw, or fish out the surplus fish and insects from the center with a fishing net bag, and then release 1/4-.

(3) Completely changing water This water changing method is often a combination of turning over the pond (tank) and selecting young or adult fish. It is often used because the water quality is seriously deteriorated or the moss is too long and the fish is too dense. There are two specific methods:

1. When there is no free pool, we have to fish all the goldfish into the basin or put the cage in the water of the adjacent pool for temporary cultivation, and add an oxygen increasing head in the basin or cage to increase oxygen. Then, brush off the moss on the wall of the original pond, rinse it thoroughly, re-inject isothermal fresh water, let it stand for a while until the water temperature is equal, and then put the fish into the original pond (cylinder).

2. If there are free ponds and fresh water, all goldfish should be caught in pots or cages, and selected and treated separately. Goldfish can be moved into fresh water and fed in sub-ponds, regardless of water temperature. This method of changing water should pay special attention to the water temperature, and it is best to choose it before 9 am on a sunny day. However, this method is generally only applicable to adult fish or larger young fish, and young fish should not be used. If possible, it is best to fill the standby pool (tank) with flooded water before completely changing the water, and then fish it directly into the standby pool (tank). In this way, the water temperature changes little, the fish can easily adapt to the new environment, and the fish can be prevented from being squeezed in pots or cages. In spring and autumn, this method of changing water is generally carried out every half month or so 1 time. In summer, the weather is bad, and the water temperature is as high as 28℃, so it is necessary to completely change the water 1 time in 5-7 days. In winter, when the water temperature drops to about 4℃, goldfish move slowly, their appetite drops, and the water quality is not easy to deteriorate. Generally, all water is not changed unless there are special circumstances.

In the south, spring is the breeding and spawning season for goldfish. In the north, goldfish can be moved out of the wintering house and raised in the open air from late March to early April, that is, before Tomb-Sweeping Day after the vernal equinox, commonly known as "out of the pot". At this time, the temperature changes greatly, and goldfish are most likely to get sick and have a high mortality rate. At this stage, we should pay attention to the weather changes, cover it with reed curtains at night to prevent cold, and lift the curtains to bask in the sun during the day.

Goldfish are generally not fed if they overwinter at low temperature, but should be fed after they leave the basin, but it is not advisable to feed them too much. Fish and worms are fished back every morning, rinsed to remove impurities, and then fed to goldfish. Start feeding less. 1 you can feed more in a week. At about 3 pm every day, dust and other dirt floating on the water are fished out with a cloth bag, commonly known as "peeling". Then gently rotate the cloth bag 2-3 times along the water at the edge of the fish tank and pool. After the sewage in the water settles to the bottom of the tank and the bottom of the pool, the sediment is sucked out with a rubber tube, and the water absorption is about 10%-40% of the total amount. If it is golden yellow at low temperature and overwintering, the fish will be thinner after coming out of the basin, so be especially careful when absorbing water. Then add the same amount of fresh water, which is about 4/5 of the depth of the basin, so as to keep a certain water temperature. Water change is usually about 2 weeks 1 time. When changing water, fish should be fished out first. After washing the fish basin, change all the fish into fresh water, and then put the fish into the basin. If the container is large, some sewage can be discharged first, and then fish can be raised, and the container can be cleaned to remove dirt. Do not completely remove the moss accumulated on the ceramic basin or cement side wall. When brushing, only impurities and mucus on the surface are removed to protect the moss bottom. Because the velvet wall of moss can produce oxygen under photosynthesis during the day, it can also protect the surface of fish from being scratched, and the mucosa on the surface of goldfish can prevent the invasion of bacteria. Smooth and soft fur can also adjust the water temperature, beautify the swimming environment of goldfish, which is beneficial to the interest of goldfish. It is normal for pools and basins to turn green.

Goldfish is an omnivorous species, and the requirements for bait are not high. In addition to artificial bait, there are some natural bait, such as red worms, earthworms, shrimp, egg yolk, noodles, rice grains, bread and so on. Can be used as bait, just be careful not to pollute the water. It is best to feed animals with bait, and the feeding should be scientific, so as to ensure one guarantee and three guarantees.

(1) quality assurance: the feed should be fresh and balanced, and do not feed with spoiled feed. Natural feed can be disinfected with potassium permanganate and washed with clear water before feeding.

(2) Timing: feed goldfish at a fixed time every day 1 time or twice a day, and the time cannot be changed. Generally, it can be fed at warm noon in spring and cool in the morning and evening in summer.

(3) Quantification: Goldfish are greedy and can be fed to 80% full every time. Keep the fish outdoors, and feed them little or no on cloudy days.

(4) Positioning: Every feeding should be in a fixed position, and the specific choice depends on the environment.

Goldfish farming has a long history in China. As early as the Southern Song Dynasty, keeping goldfish in the palaces and courtyards of dignitaries was widely popular. At that time, goldfish was only a senior pet of the royal family and could not enter the homes of ordinary people. With the development of society and the improvement of people's living standards, goldfish farming has spread to thousands of households and become a common pet in modern times.

According to the different forms and locations, goldfish in family farming are generally divided into three categories: courtyard farming, balcony roof farming and aquarium farming.

Courtyard farming: refers to the cultivation of goldfish in small ponds in villas and family farms, with strange stones and herbs, which not only cultivates self-cultivation, but also beautifies the environment and makes people feel happy.

Balcony roof farming: generally in Jiangsu and Zhejiang provinces, many people use this method. It is necessary to waterproof the pond to prevent water leakage, set up a sunshade to prevent the water temperature from being too high when the sun shines directly in summer, and design a reservoir and a working channel next to the aquaculture pond.

Aquarium culture: goldfish lovers are generally willing to choose aquarium to raise fish, which is economical and convenient to appreciate. When the living room at home is not wide, putting a fish tank in the corner can add a lot of interest to the room.

I wish you success in raising fish! ..