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In fact, it is normal for crucian carp to turn yellow in color. In general, white crucian carp are raised in large clean reservoirs, or in large rivers that are very clear and clean. As for the yellowed crucian carp, it is generally wild crucian carp, and the water may be a little turbid and not so clean.
In order to protect themselves and not be easily spotted, fish generally evolve into colors similar to those of their surroundings. That's why some crucian carp are white and some are yellow, but this doesn't affect the food.
There are two reasons for the yellowing of the fish, one is that it will naturally change color, but when it reaches the age, there is no need to worry too much.
The other is that it is sick, which may be caused by poor water quality, pay attention to changing the water to increase the temperature and see if it can be improved. Many fish will change color, such as goldfish and arowana.
Koi fish, etc., will color when they reach age, and the body surface will become more vivid, which is also a kind of protection for themselves.
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Crucian carp turns yellow after being raised at home for a few days for the following reasons:
1.Breed problem: The crucian carp itself is relatively yellow in color, the variety is poor, and the ornamental value is not high, which is a normal phenomenon.
2.Water quality problems: When the water quality deteriorates, the fish will turn yellow, and the fish should be placed in a small river or stream with plenty of oxygen.
3.Cause of disease: Fish get disease, for example: goldfish infected with "wilting disease" will turn yellow all over the body.
The above are the reasons why crucian carp turn yellow after being raised at home for a few days, I hope it will help you.
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Summary. Dear, if you want to use an air pump to supply oxygen, the fish will not die when there is oxygen. After selling the remaining live fish, oxygen will continue to be supplied after the water is changed.
If you want the fish not to die, you must have a pump that matches the fish tank, and you need to change the water regularly, about once every two or three weeks, and change one-third to one-half of the water each time. At noon, when the light is strong, the fish should be shaded, which can be covered with a wooden board, and should not be exposed to strong light, otherwise it is easy to die.
Dear, the color of crucian carp changes with the environment. Fish are also common to have a protective color, which is based on the water body and environment. That is, different water quality, water depth, and sail rolling environment, the same species of fish often have different body colors.
And the color is not constant, with the change of environment and water quality, the fish body will further change the color of the sedan car to adapt to the new environment.
Pro, the color of the animal's appearance is similar to the surrounding environment, and this color is called protective color. Many animals have protective colors, similar to the pattern of leopards and frogs, and many will change color, but the highest level is pure or hand mimicry, not only color, but even the appearance has completely changed (color, appearance is similar to the environment to mimicry).In nature, many creatures rely on protective colors to avoid enemies and preserve themselves in the competition for survival.
I am a fish seller, but the fish die of old age, I don't know what the reason, dear, one is the severe lack of oxygen in the water, resulting in the fish suffocating to death. The second is that the water is polluted, and Bi Ruyu will also die. The third is that the fish is sick and infected with a fatal virus, and the fourth is that the fish is injured during the transportation of the fish.
Wait. Dear, if you want to use an air pump to supply oxygen, the fish will not die if there is stupid blue oxygen. After selling the remaining live fish, oxygen will continue to be supplied after the water is changed. If you want the fish not to die, you must have a synovial fluid pump that matches the fish tank, and you need to change the water regularly, about once every two or three weeks, and change one-third to one-half of the water each time.
At noon, when the light is strong, it is necessary to shade the fish letter file, which can be covered with a wooden board, and do not be exposed to strong light, otherwise it is easy to die.
Due to the limited volume of the water body in the fish tank, the environment in the water is very susceptible to the external environment. The basic elements that fish need to survive in the water are oxygen capacity, water temperature, light, pH value, water hardness, ammonia nitrogen, nitrite concentration, etc., and the first three are directly affected by the external environment of the water body, so the position of the fish tank has a great impact on the water environment in the bathtub.
I once had a small wild cat for nearly two months, and it still recognized its owner after two days of release. I think cats are also spiritual, you are really good to it, it knows, generally more spiritual and well-behaved cats are recognized.
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