CATDOLL : CATDOLL: How to maintain water for Koi How to maintain water for Koi

1. How to maintain water for Koi How to maintain water for Koi

1. Generally speaking, the water used for breeding koi can be divided into several types: groundwater, river water, artificial disinfected water, and lake water. Among them, artificial disinfected water still accounts for the majority, and water that has been artificially disinfected will have some residual chemicals in the water. Chlorine is a typical residue left in the water body after water quality treatment. Chlorine is toxic. If koi is directly bred with tap water that still has a lot of chlorine, it will cause chlorine poisoning and death in severe cases. Secondly, the water body that has not been cultivated does not have a complete nitrification system. Many toxins that are harmful to koi cannot be transformed. The more they accumulate, the weaker koi will show symptoms of poisoning and eventually die. Therefore, "raising fish first starts with raising water" and raising water well is the first step to a successful start.

2. How to maintain water. Disinfection of fish tanks and fish ponds: Do a good job of disinfection to ensure that there are no toxic or harmful substances in the fish tanks and fish ponds themselves; Inject water for oxygen explosion: Many fish lovers use tap water directly for breeding koi. As mentioned above, there will be more or less residual chlorine in tap water, and these chlorines will react under the conditions of oxygen explosion and separate from the water. This is a fast and effective way to eliminate residual chlorine; Turn on the water circulation: Drain the filter material, turn on the water pump, let the water circulate, pour in nitrifying bacteria, and keep the water body oxygenated; Add small fish to the tank: At the beginning, you can put in small fish, the number can be controlled at about 2-3, preferably small fish that can eat and defecate. And observe the changes in water quality and the state of the fish that break into the tank. If the state of the fish that break into the tank is not very good, you can fish one out and add nitrifying bacteria. After a few days, if the conditions of the fish that break into the tank are good, you can increase the number of fish that break into the tank appropriately, and repeat this process for about half a month; prepare to introduce the main fish: After about half a month of water cultivation, you can start preparing to introduce the main fish, but one thing needs to be noted, because the size and number of the fish that break into the tank are different from those of the main fish. It is easy to cause temporary small fluctuations and imbalances in the nitrification system. At this time, when the main fish first enters the tank, you need to pay special attention to changes in water quality and the conditions of the main fish. You can also add a small amount of nitrifying bacteria every day to speed up the reproduction of nitrifying bacteria.

3. Precautions for water maintenance. The water should be aerated or sun-dried to remove residual chlorine; the amount of filter material should be reasonable to ensure the oxygen supply of the koi fish tank and pond; a stable and appropriate amount of organic matter should be ensured to promote the establishment and balance of the nitrification system; on the premise of ensuring balance, the amount of organic matter should be gradually increased.

4. What is "organic matter"? Organic matter in water refers to feed residues, fish feces and other substances. It can be said that organic matter is the origin of the nitrification system. Only a sufficient amount of organic matter will help to establish and improve the nitrification system. If there are too many organic matter, it will cause bacteria to burst in the water and become foggy. If the water becomes foggy, it means that the nitrification system has collapsed or has not been established, and it is necessary to re-cultivate the water and add nitrifying bacteria.

2. What is the best pH value for Koi water?

Koi water quality pH value requirements are relatively broad, 5.5-8.5 basically affects the survival. It is generally recommended that the water for breeding is around 7.5. The relatively acidic water quality is prone to breed special diseases - egg dinoflagellate disease. The slightly alkaline water quality can cause some diseases.

3. Do I need to change the water frequently when raising koi?

The water change for koi depends on the season and stocking density. Usually, the water is changed every 2-3 days in summer and every 4-5 days in spring and autumn. The amount of water changed is 1/3-1/2 of the original pond. Keep the water fresh.

Do not change too much water at one time, otherwise the water quality will suddenly change, which will cause the fish to suffer from water quality discomfort. Koi have adapted to living in the original water quality. If the water quality suddenly changes, the fish will not be able to adapt and will get sick or even die suddenly.

When changing the water, be careful not to bring oil into the water. Oil will float on the water surface and isolate the air, so that the oxygen in the water cannot be replenished, which will cause the fish to die of lack of oxygen. When feeding, if you have applied hand cream on your hands, you will bring oil into the water, which should be carefully avoided.

Additional information:

Things to note when raising koi

The amount of food fed should be appropriate, not too much. It is best to feed koi until they are 80% full. It usually takes 30 minutes for big fish to finish eating, and five minutes for small fish. Feed according to the structure of the koi fish tank, fish size, number, water temperature, etc. The amount the fish needs can usually be known within a few days.

Koi have a strong appetite in the summer when the temperature is high, but they eat less or nothing in the winter. The amount of feed should be determined according to different environmental factors. But the important point is that there should be no residual feed in the pond. It is completely determined by the metabolism of the koi fish. It is best to feed them twice or three times a day.

Stocking density: The water cluster box density of 60×30×15 can raise 6 koi with a body length of 15 cm to 20 cm; 90×30×50 can raise 8 koi; 110×30×50 can raise 10 koi.

Reference source: Baidu Encyclopedia - Koi

Whether or not to change water frequently depends on stocking density, feeding habits, ambient temperature, filtration capacity, etc.

Whether it can be considered frequent also depends on personal perception.

It is recommended that if you want to keep fish well, changing the water is an essential task, and the frequency of water changes can be determined according to the water quality test. In addition, for a real aquarium player, changing the water is not a burden.

Of course, you need to change the water frequently. In winter, you can change the water once every half a month, changing about a quarter of the water each time, and stop feeding. The higher the temperature, the more you feed, and the more frequently you change the water.

Every experienced carp farmer has his own style of changing the water, some change about one-tenth of the water every day, some change one-quarter every three or four days, and some keep the water running for a long time during the high feeding period, with the tap water dripping all the time.

I usually clean the bottom of the water every two or three days, and change one-tenth of the water when cleaning the bottom of the water, and then change one-fifth every weekend. In short, you have to be diligent in raising fish. Otherwise, the fish will get sick sooner or later, or if you abuse the fish and feed it abnormally, the fish will not grow big. Koi will not be more than 60 or 70 centimeters, and there is no fun in raising fish.