Why can't Koi be kept alive? How to tell if Koi is healthy?

As people's quality of life improves, more and more people like to keep some fish at home. Koi is deeply loved by the public because of its good meaning and high ornamental value. So why does Koi never survive? How to tell whether Koi is healthy? The following editor will explain them one by one, hoping to help you.

Why can't I keep koi alive?

1. Water is to fish what air is to humans. Haze in the air will definitely cause problems for the human body. And unregulated water can cause many fatal damages to fish.

2. Dissolved oxygen problem. Sufficient oxygen in the fish tank or pond will help the growth of microorganisms in the biological filtration system. This is especially important for koi that eat a lot and poop a lot. If there is too much excrement, the koi will be suffocated by their own feces. Therefore, it is necessary to provide enough oxygen to ensure the survival of the koi while cultivating the microorganisms in the water. The dissolved oxygen parameter is generally not less than 3-5 ml per liter of water. The water pump still needs to be turned on, and the bubbles should be as small as possible so that oxygen can be easily dissolved.

3. Filtration system. The quality of water depends largely on the filtration system.

4. Feeding. The scientific feeding ratio is 3%-5% of the koi's body weight. This is too professional. The simple feeding method is to feed the amount that the koi can finish eating in 15 minutes. If the koi finishes eating in 15 minutes, it means the amount of feed is just right. If the koi cannot finish eating, it means there is too much. Feed less next time. If the koi finishes eating in less than 15 minutes, feed more next time. If the koi is fed too much, the food will rot in the pond, which will affect the water quality. Feeding fish is a scientific project. Feeding too much or too little is not advisable.

How to choose koi

First, check the water in the aquarium store: if the water is green or yellow, you can buy it; if it is white, don’t buy it.

Second, look at deformities: spinal curvature, caudal fin deformity, missing eyeballs, and scale deformities are all common;

Third, look at the symptoms: congestion, rotten spots, rotten fins and body, blindness, flaked scales, red anus, etc., and internal parasites, the fish is relatively thin;

How to tell if Koi is healthy?

1. Check whether there are any injuries on the scales, such as insect bites, fallen scales, cuts, congestion under the skin and in the fins, etc.

2. Check whether the scales are covered with a layer of white fluff or white spots scattered on them.

3. Look at the swimming style: steady, powerful and balanced.

4. Breathe at an even frequency.

5. Body shape: Don’t look too fat, a spindle shape is preferred.