CATDOLL : CATDOLL: How to take care of newly bought koi

1. How to raise newly bought koi

First, put the newly bought fish in the bag and put it in the fish pond water to let the fish adapt to the water temperature for about 40 minutes. Then disinfect it with potassium permanganate and install a Xipu fish pond filter to ensure good water quality. Integrated filtration and automatic backwashing

How to raise koi fish? Things to pay attention to if you are planning to raise koi fish

Filtration and oxygenation must be done first. To raise koi, you must first raise the water. Koi have extremely high requirements for water quality. Koi are omnivorous fish. They are easy to raise. They eat a lot and poop a lot. Once filtration is done well, everything else is simple.

1. Environmental requirements

Koi, like goldfish, are not very demanding in water temperature and water quality. The suitable temperature range is 2℃～30℃, but they cannot resist sudden changes in water temperature. Koi will feel uncomfortable if the temperature difference suddenly exceeds 2℃～3℃. The most suitable water temperature is 20℃～25℃. They need sufficient oxygen and are suitable for living in a slightly alkaline, low-hardness water environment. Therefore, when changing water, try to balance the temperature of the new and old water, and the temperature difference should not exceed 2 degrees.

2. Food requirements

Koi are omnivorous fish. They can eat mollusks, fragments of higher aquatic plants, benthic animals, and even tiny algae or artificial granular bait. They can eat insects such as crickets and earthworms, and vegetarian food such as bread crumbs and steamed buns is also OK. In short, they basically eat everything you eat, so I raise koi like raising dogs. They can eat the corn I left over. If you feed more, you have to change the water frequently. The more you feed, the worse the water quality. How much feed is appropriate for a fish? It's hard to say. The general standard is that if the koi finishes the food quickly after you feed it, you have to feed it more. If the koi hasn't finished eating within 5 minutes, it means you have fed it a lot.

3. Maintaining water quality: Koi fish do not have high requirements for water quality. The six koi fish I raise are more than 20 centimeters long and have a lot of excrement every day, so I bought a filter worth several dozen yuan (running 24 hours a day) to filter the water while supplying oxygen. Generally, the daily power consumption is less than 1 degree. Change the water once a week, and change one-third to one-half of the water each time. Do not change too much water at a time, as this will cause instability in the ecosystem of the fish tank and make it easy for the koi fish to adapt. Another thing to pay attention to is not to let oil contaminate the bathtub, otherwise it will easily cause suffocation due to lack of oxygen.

4. Water temperature control: As mentioned above, koi can survive the cold winter, but they are less active in winter. If the weather is very cold, pay attention to putting in some nutritious fish feed to supplement the calories. If the weather is very hot, feed less food, clean the fish tank more often, and change the water more often. When changing the water, pay attention to the water temperature. If koi are suddenly put into cold water, it will be difficult for them to adapt, so put the water in a basin to cool for a while, and pour it into the bathtub when the water temperature is about the same as the air temperature.

5. Don’t plant water plants: Water plants are very expensive nowadays. If you raise koi, the water plants will be eaten quickly or pulled out by the koi, which is not worth the loss. And the leftovers can easily pollute the water quality. My method is to grow water plants in a separate basin and regularly add water plants to the fish tank to supplement nutrition.

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

7. Four-season management: The management method of Koi varies with the seasonal temperature changes.

In spring, the weather is warm but still cold, and koi begin to wake up from hibernation. The breeding is moved from indoors to outdoors, but special attention should be paid to sudden drops in temperature. Cover the water with a film in time to keep the water temperature stable.

In summer, when the weather is extremely hot, plastic shade nets must be added to prevent direct sunlight.

The weather in autumn is sunny with little rain, and the water temperature drops significantly, which is most suitable for the growth of koi. The proportion of animal (protein) food can be increased.

In winter, the weather is relatively cold. When the temperature drops to 0℃, the koi should be transferred to the indoor fish pond in time to overwinter. The indoor water temperature should be kept at 2℃ ~ 10℃.

When keeping them in a tank, the filtration must be very powerful. The water must be changed frequently, and 1/5 of the water must be changed every 3 to 5 days. Because they eat, drink, poop and urinate a lot, and fish also pee, so the water must be kept fresh. Only by changing the water frequently, otherwise they will get sick.

2. Why do the koi fish I raise always lie on the bottom of the water and don’t seem to be very happy? The water quality is not very good! I added two new koi fish some time ago! What can I do?

There are three possible reasons: normal physiological state, stress response or abnormal pathological state.

1. Normal physiological state - Fish are vertebrates and need to use sleep to eliminate fatigue of the nervous system and limbs. However, fish do not have eyelids and cannot close their eyes when they sleep. When the ambient light is very dim, they will lie on the bottom of the tank and move slowly.

2. Stress response - adding new fish to the tank or changing the water will cause a certain amount of pressure. When the fish are not used to it, they will lie on the bottom of the tank and move slowly. They will get used to it after a period of time.

3. Abnormal pathological state: various diseases cause the decline of physiological ability and inactivity. The cause must be distinguished and symptomatic treatment must be given.

Isn't this a grass goldfish?

3. Six taboos for beginners to raise koi fish

It is very easy to raise. Just put a few pieces of fish in the water to keep the water good and don't feed it too much.