How to raise swallow fish?

Because of the poor water quality, there are problems in the breeding of angelfish (swallowfish). They need to change water regularly to keep healthy. This is a problem that is easily overlooked. Frequent water change is an important factor related to the success of color raising. Therefore, for colorful farming enthusiasts, you will be happy to try your best to change water frequently. As for how much is the best, you have to practice to come to the correct conclusion. Everyone has different conditions and views on this issue. The change of water quantity is related to how many fish are in your fish tank and how many fish you feed. According to the different information I get, there are various changes from 50% every day to 20% every week. Most of them are changed twice a week, with 20%-40% water each time. The reason for changing water is to keep the harmful bacteria in the fish tank at a low level. Colorful bodies will produce a kind of mucus, which will spread to glass, filter screen and fish tank water after leaving the body. You will see this mucus sticking to the glass of the fish tank like a film. This is the soil where harmful bacteria spread in the fish tank. So try to reduce such opportunities. At the same time, changing water can also keep the nitrate concentration in the fish tank at a low level. Changing water frequently also helps to drive away any toxins. Changing water can replace some trace elements and make them accumulate from dangerous state. This will help to keep the balance of trace elements. If you can keep some trace elements in an appropriate amount and keep the nitrate concentration at a low level, you can make your fish grow rapidly and stay healthy. If you are interested in making your colorful grow at the fastest speed. Then the more water you change, the faster the fish will grow. You can keep a few colorful flowers in two identical fish tanks and feed the little ones the same amount of food every day. Change a fish tank frequently at the same time, and it will soon be seen that the fish in the fish tank that changes water frequently are longer on average than those in the fish tank that does not change water frequently. Of course, every batch of fish will always be stunted, which should be another matter. There is a theory that hormones released by fish in water will affect the growth of other fish. Then changing water frequently will reduce the influence of this hormone. I disagree with this theory. I think strong fish tend to eat more and grow stronger with the increase of appetite. They can get more food easily. Smaller fish can't grow up with time, because they can't get as much food. This is the survival of the fittest in nature. But there is no doubt that changing water often is very helpful to the growth of colorful. It is hard to say whether the concentration of nitrate can be reduced and the balance of trace elements can be maintained. One thing is certain. Changing water is very beneficial to colorful growth. There is another problem that is usually ignored in the process of raising colorful. That is to say, you should prepare the water for changing water in the fish tank in advance. You can use a container that can store water and prepare water in advance. This practice will make you more successful. Most successful people emphasize the importance of preparing water. Cylinders used to store food and garbage can be used to store water. It should be noted that some plastics will release harmful chemicals in water. But as long as the container can store food, it is safe. An electric heating rod should be set in the container to make the water reach a certain temperature. In addition, the container should have a cover, but it should not be too tightly sealed to allow air to enter for gas exchange. Just like your fish tank should not have a lid. Using an air pump to continuously inflate the water to be changed in the fish tank for 24 hours can stabilize the PH value. There are other methods, such as filtering the stored water with a filter filled with activated carbon, which can make the PH value and hardness of the water within your requirements. Some people use good silk stockings. Put activated carbon in it, and then put it in the place where the water flow is filtered. Others use a cushion cover, in which activated carbon is put, and then put it in a container filled with water. The purpose of both methods is to make the stored water meet the use requirements. You can also use chemical methods to make your water meet the use requirements. Such as activated carbon, acid, etc. It can be used to adjust the water quantity. Of course, you also need a complete set of testing tools and various instruments for changing water. Everyone has different water, so different people will use different methods. The more top-class angelfish, the harder it is to raise. The better breeds are: grey fairy, black and white fairy, panda fairy and so on.