1.? Don't leave any unfinished food. Remove any unfinished food with a fishing net or siphon after feeding for 1 minutes.

2.? Don't cause too many fish mouths. Each fish tank has its maximum fish population, that is, the biological digestion load (the maximum amount of waste that can digest and decompose fish). Our calculation method is a 3 cm fish every 4 liters. Add up the body length of the fish school, multiply it by 4 and divide it by 3 to get the minimum water you need, and how big the fish tank is. You can also calculate the size of the fish tank first to find out how big or how many fish you can raise.

3.? Do not do too much. Don't disassemble the arranged fish tank for cleaning, you don't need cleaning. Change the water at least twice a week, and each time it does not exceed 2% (unless you have to-please be careful about your definition of necessity). If your fish tank is dirty, 2% once a day until the fish tank is clean.

4.? Don't just rely on the sweeper to clean the fish tank. Rat fish and black shell shrimp will eat the remaining residue under the fish tank, which will really keep the water quality stable, but these creatures will not help you clean up all the dirty things, and they will also pick.

5.? Don't buy pike and aquarium at the same time (unless you are really good or ready). Prepare the fish tank and auxiliary equipment first, and operate it for at least 3 days. This can reduce the environmental pressure for the new pike.

6.? Don't spread gravel more than 1 cm thick. If you have good biological digestion and filtration equipment, you don't need to lay sand and gravel. If you have gravel, gently flip the fishing net every day to let the waste pass through your filter, and clean the gravel at least twice a week. If you have a dog's head that can drill sand, the frequency of sand cleaning should be increased once (because your sand is thicker).

7.? Don't be impatient and do too much or too fast. Don't add too many new fish at a time, and pay attention to observe and appreciate how they get used to the environment. Too much at a time will make you lose sight of some small details.

8.? Don't pollute the fish tank. Make sure that anything that enters the fish tank does not contain soap, detergent, pesticides, or other chemicals. If you want to put some decorations, make sure that these things will not pollute the water. Some stones and gravel contain toxic minerals, and some plastic plants are not suitable for putting into water. Make sure you buy things, and don't forget the danger because of its beauty.

9. Don't use pesticides near fish tanks, even small amounts will cause big problems.

1.? Don't put your unwashed hands in the fish tank or touch the puffer fish. Emulsion, soap, detergent, car wax, and other chemicals will get used to it. Clean it first (rinse it with clean water) and air dry it before entering the water. Remember to wash your hands after touching the water in the fish tank and puffer fish!

11.? Don't knock on the fish tank. Observing puffer fish with eyes, they may sometimes rest, and knocking on the fish tank will increase the tension of puffer fish (a friend keeps a puffer fish, which scares the puffer fish to release toxins, and all the fish-including that puffer fish-are poisoned). Be patient and watch carefully, and wait a few minutes, they will move (because you know what it looks like when it dies).

12.? Don't just replenish evaporated water. The water evaporated from the fish tank will increase the concentration of non-evaporable substances. Take some water out first and then replenish it to the waterline. (If you change a little water every day like us, you won't have this problem.)

13. The optimum water temperature of puffer fish is 16-23. When the water temperature is lower than 9 or higher than 28, it is not good for its growth.

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Try to reduce their stress. Stress will destroy their immune system and make them prone to illness. Establishing a comfortable home and living environment for them is a good way to reduce stress. You might as well arrange something for them to hide in the jar. Aquatic plants with wide leaves, stone caves and heavy wood are all good choices. These little guys are more active in the evening and evening, and they usually like to hide and rest during the day.

In addition, constant water temperature and PH value are very important to them, because they are actually very sensitive. In addition, they like houses with bottom sand. Of course, filtration and water flow are also essential, but the water flow should be slow, maybe they like silence. It is also very important to choose the right partner for them. We can choose the right playmate for them by considering factors such as size and habits, and of course there may be unexpected situations.

For example, the little guy often causes them small injuries or simply eats them as snacks. If his playmates are fierce, then the little guy may endure for a while, and if he can't bear it, he will have a fight with his opponent, and the opponent will either die or be seriously injured. After all, the little guy is not easy to provoke, and there is something called tetrodotoxin in his body.

Principle 2: Feed the little guy the right food. Little guys are carnivorous, they don't eat plants, and rarely eat all kinds of artificial feed. The above foods can't provide nutrients for their growth. Usually, frozen or fresh blood worms, earthworms, shrimps, shellfish, crabs, squid and snails are all their favorite meals.

It is important to be careful not to overfeed. If overfeeded, it may lead to constipation. They often pray for food, even if they are full, because they really love to eat. If their stomachs become very big, it means that they have eaten too much. Usually, we can feed them once or twice a day. Usually a few hours after feeding, their stomachs will collapse. If their stomachs are always bulging, then your little one may be suffering from constipation.

Principle 3: Always check the little one's physical condition. As a daily habit, carefully check the little one's whole body every day to see if there is any possibility of external diseases, bites and injuries caused by parasites, bacteria and fungi. By the way, observe their activities and see if their actions are abnormal.

One advantage of this routine inspection is that the little guy will get to know you soon. When you walk to the tank, they will hover and swim up and down in front of you. Pay attention to several bad signs:

1. The little guy is actually greedy because he has a bad appetite. If he is found to be picky when he eats, something must be wrong.

2. Pressure line. If you find dark gray lines between the back and abdomen on the side of the little guy, these lines can extend from the mouth to the tail, which is also an unwanted sign.

3. For the type of white belly, if the little guy's belly turns black and the color is deepening, you should also pay attention.

4. Under normal circumstances, the color of the little guy's back will change with the time of the day and other factors, but if the color of his back gradually becomes dim and can't change to normal body color for a long time, it is also one of the dangerous signals.

if you find a problem, you should carefully check the environment where the little guy lives (salt temperature filters the concentration of PH ammonia and nitrite). If there is no problem with the environment, you should see that there are no other terrorists (some big fish) in the little guy's tank to make him feel scared. And there is enough hiding place for him to rest in the cylinder. If all the above conditions are normal, it is necessary to carefully check whether his body has physical injury.

Reference: Puffer-Baidu Encyclopedia.