Why do goldfish always die in summer?

The first thing to pay attention to is the water source. We can't directly raise goldfish with tap water just released, because there are many harmful substances in the water just released, and we can't raise fish with cold boiled water, because boiled water will change substances. What should we do?

What water should be used to raise fish? First of all, we can put tap water into a bucket or other container, and then expose it to the sun for 2 hours to evaporate harmful substances in the water. If it is not convenient to bask in the sun, we can precipitate the water for 2.3 days and evaporate the harmful substances. We can raise fish with such water. Note: water cannot be changed at one time. If the fish tank is dirty, replace it with 2/3 water; if it is not dirty, replace it with 65438+.

The third thing to note is: you can't put too much feed at a time, because if you put too much feed, the fish won't finish the rest of the feed in a few minutes, which will pollute the water quality. The best feed fish can be eaten in 4.5 minutes, with about 6.7 feed for each big fish and 2.3 feed for each small fish. If you want fish to grow healthily, it is best to feed them regularly and quantitatively every day.

The fourth thing to note is that many kinds of fish can't be eaten together. In Bian Xiao, a large glass tank raised 15 fish, two of which were different from the other 13 fish. At first, they were very good and could live in peace. It won't be long before 13 fish will bite these two fish, eat their tails and break their heads. My two fish children are outnumbered.

Fifth, pay attention to the oxygen content in water. Generally, a lively goldfish will jump out of a small fish tank for three reasons. 1 There is not enough oxygen in the water, 2 a giant salamander is coming, and 3 the fish is too excited. The solution is to oxygenate the water, and the water should be at a certain distance from the edge of the fish tank.

Three principles of keeping goldfish well

Discipline 1: Raising water is king.

A good tank of water is the basis of raising fish well. In suitable water quality, fish can eat happily and grow fast, and will not get sick. So how to raise water? Raising water is a complex systematic project, which exists in the whole process of fish farming. You can't relax at all because the ecology in the fish tank is very fragile. An accidental event often leads to the collapse of the ecosystem in the tank, turning a good tank of water into a poisonous tank.

Discipline 2: Be careful with technical means.

At the beginning of fish farming, I was always curious about various technical means such as fish medicine, germicidal lamp and water quality regulator, and always wanted to try one by one. Here, I want to advise you that any method has two sides. It is not difficult for an old hand to grasp the discretion, and the result is often counterproductive. The quality of water quality is on the one hand, and more importantly, there can be no big fluctuations in various indicators, and many fish can't stand your toss.

Discipline 3: Step by step.

Don't expect to be fat in one bite. I can't help itching when I see someone else's beautiful fish tank. It's unrealistic to want one for yourself the next day. Only by starting with the most basic grass gold and breeding fish can we accumulate experience step by step and eventually become a master.

Ways to raise goldfish well

To raise a good fish, you must first learn to buy a good fish.

1 For beginners, the first thing is to buy healthy fish. So how to choose a healthy goldfish?

Healthy fish swim in the middle and lower water, foraging and competing for food. They swim naturally, leisurely and live in groups, with clear and transparent caudal fins and elegant posture. All fish that sink to the bottom, float, stand upside down or swim in a struggling state, have trauma, scales fall off, long white hairs and white spots, thick and turbid tail fins, severe congestion, cloudy eyes, dull body color and solitary fish are all sick fish, and you can't buy them again.

There is a process of skill accumulation in fish farming. You don't have to choose perfect fish, but you must buy cheap fish and healthy fish. This cannot be ignored. Especially in winter and early spring, you should choose goldfish carefully, because there are many sick fish this season.

2. Before keeping goldfish, you should prepare a fish tank that is not too small, mainly depending on the size and quantity of goldfish you keep. Also pay attention to the density of fish. Novices often buy the fish they like when they see it, and rarely consider how many fish they can keep in the tank. Even if they ask the fishmonger for advice, can they say that you buy less for profit? In my experience, it takes at least 3 liters of water to raise fish with a length of 1 cm. If your fish tank is filled with 100 liter of water, you can feed 3-4 fish with 10 cm and 8 fish with 5-6 cm. On this basis, the temperature in winter is low and the bait is less, so it is appropriate to raise more fish. Goldfish are more active in a larger space, and their body color is more vivid. Excessive density of water will lead to hypoxia and deterioration of water quality, which will lead to illness and death of goldfish. Remember not to be confused by the crowded fish tank in the store!

Third, the fresh water of goldfish should be stored for one or two days, which is called "trapped water". On the one hand, it is to remove chlorine from water, and on the other hand, it is to make the temperature of new water and old water as close as possible.

Fourth, buy goldfish must be oxygenated to avoid being suffocated on the way home. The goldfish is home, don't rush into the tank. Put the plastic bag containing fish in the fish tank 10 to 20 minutes before opening it. Let the water in the jar be poured into the bag for many times, and gradually mix with the original water, so that the fish can gradually adapt to the water temperature and quality of the new home. If there is a light, turn it off. In the dark, fish are quiet and not easily frightened.

Five can't dramatically change the temperature of water (one of the purposes of trapped water). Goldfish can survive in a wide temperature range, and can still maintain life under ice in winter. As long as they are not exposed to the hot sun, they can live normally on a hot day. However, if the temperature changes sharply, they will get sick or die. When buying fish, pay attention to the water temperature of the aquarium and the water temperature of your own aquarium. The deviation should not be too big, generally within 4 degrees is allowed.

Sixth, you can't change too much water at a time, otherwise the water quality will suddenly change, which will lead to the 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.

How to feed. Goldfish are kept at home for viewing, so there is no need to feed more fish food. Feed it once or twice a day and eat it within 5 ~ 10 minutes each time. If you can't finish eating, you should suck out the residual bait with a siphon in time, and you can't stay at the bottom of the tank for a long time. Feed less in rainy days and not at night. Because fish need to consume more oxygen when digesting food, the air pressure is low in rainy days and at night, and the oxygen dissolved in water is also low. In this case, feeding the fish may lead to severe hypoxia in the water and the fish will die. Most dead fish occur at night. That's the reason.

According to the color of fish manure, we can distinguish the saturated digestion and absorption of goldfish hunger: if the fish manure is green, brown or black, it means that the fish is suitable for feeding and absorbs well. If the fish manure is white, it means that the fish is full, and the feeding amount should be reduced.

Eight ingredients must be clean. Feeding unclean fish food can easily lead to fish diseases. Although goldfish like live food best, goldfish grow faster when fed live food, but live food grows in polluted water environment and is easy to be infected with germs, so be careful when feeding live food. It is recommended to buy brand-name frozen fresh foods produced by professional companies, such as red worms and bumper shrimp, supplemented by beans and vegetables, to maintain comprehensive nutrition. Breadform is also a favorite living food for goldfish, which has high nutritional value and can also be properly fed.

Keep the water clean. Goldfish eat a lot, consume a lot of oxygen, and discharge a lot of waste to pollute water and breed germs. In order to keep the water clean, a filter should be installed to filter it out at any time. Every day, the wrinkles and residual bait at the bottom of the tank should be removed, and one tenth of the old water should be replaced, especially in summer. It is best to use filtration with aeration design, so that filtration and aeration can be carried out at the same time, which not only purifies the water body but also supplements oxygen.

Do not bring oil into the water. Oil pollution will float on the water surface to isolate the air, so that the oxygen in the water can not be replenished, leading to the death of goldfish due to lack of oxygen. Eating meat or applying hand cream on your hands will bring oil into the water and should be carefully avoided.

One of the purposes of raising fish is to cultivate the mind and nourish the nature. Instead of a whim, it is better to start with the cultured fish goldfish. The cultured goldfish has strong foraging ability, strong physique, little possibility of accidental injury and relatively low price. Raising precious fish after accumulating experience can reduce losses.