Hangtai Aquarium: six factors that easily lead to illness or death of fish

There are many causes of fish illness, not all of them are infectious diseases. Only by observing carefully and finding out the real cause can we prescribe the right medicine to the case. Today, the editor will share with you about the non-pathogenic causes of fish disease.

I. mixed culture

There is a lot of knowledge in mixed culture between the same kind of fish, or between different species of fish. We should first find out the temper and shape of these fish. Sometimes in two mixed culture tanks with the same equipment, size, type and quantity, the situation in which the fish get along will be absolutely different. Whether it is suitable for mixed culture should not only follow the biological law, but also pay attention to observation before we can draw a conclusion. Otherwise, we will train them from an early age to accept the laws of group life and get used to gregarious with each other.

If the mixed fish is not eye-to-eye, there will certainly be fights and chase bites. if the fish are normally raised well and are strong, they should be fine after isolation treatment, such as broken fins and scales at most. What often happens is that the wound of the fish with poor resistance is inflamed, red and swollen, and then bacteria and parasites will invade the fish through these physical injuries, such as white hair, rotten fins, rotting tail, lymphoid cysts and so on.

Second, landscaping

Sometimes the scenery of the fish tank will be very beautiful, but sometimes it will also become a burden to fish, especially large fish, as far as the colorful is concerned, the living space in the tank must be enough, assuming that there is too much scenery, or the material is too sharp. it will make the fish touch in the course of activities to cause physical damage, and then there will be many chances of infection. In my personal opinion, you'd better not use things like corals. In addition, sunken wood must be sterilized and reused.

Also pay attention to the change of water, fishing should also be careful not to cause physical damage to fish, if there can be added some fish disease prevention drugs, in order to reduce the chance of pathogen infection.

Third, the activity space is not big enough.

If there is no large tank, it is best not to raise large fish, even young fish, as they grow up, will cause physical decline, because lack of exercise, resulting in spinal curvature, or skin abrasions, very easy to get sick, coupled with the small tank to maintain water balance is relatively difficult, almost all factors are out of control!

In addition, novices must pay attention to the density of fish, and mixed culture should pay attention to the balance of the distribution of upper, middle and lower schools of fish. The relationship between fish and water is interactive, and once the fish exceeds the carrying capacity of water, the whole cycle will collapse!

IV. Water quality

There is a common saying, "grow fish and raise water first". In addition to talking about the water in the new tank, it also shows that the water in the fish tank is the key to raising good fish!

The main factors that determine the quality of water are filtration system, temperature control system, and the source of water. The motor and filter are indispensable equipment to maintain the constant system of the ecological cylinder, but if we choose the wrong equipment, sometimes the filtration system can not play a full role, resulting in the deterioration of water quality, on the contrary, if the water flow in the cylinder is too large, the impact is too strong, it will also be harmful. Sometimes the traffic lights (or other small fish) die inexplicably, and the arowana turns its gills because the current is too strong.

A good filtration system can cultivate microbial filter beds and enable them to metabolize nitrogenous waste by themselves. if there is less nitrogenous waste in the water, the water quality will naturally be stable and there will be fewer diseases. Excessive accumulation of nitrogenous waste in water can cause fish ammonia poisoning. In addition, when nitrogen-containing waste accumulates too much, it will cause an increase in the number of some pathogens and make fish parasitic by pathogens to get sick.

In addition, the value of PH is unstable, or it is more than the fish can bear for a long time, which will make the fish acidosis or alkalosis. Acidosis, when the PH value changes dramatically, the fish will suddenly be very excited, the swimming speed will be accelerated, and the fish will die faster. Long-term in an acid environment, Gills and body mucosa will stimulate the secretion of a large number of mucus, easy to cause bacterial infection. The situation of alkalosis is similar to that mentioned above, but the fin tissue is more easily damaged. The best way to avoid this is to stabilize the water quality, properly oxygenate, reduce the waste containing nitrogen in the water, and change the water regularly.

5. Unbalanced nutrition

If you feed fish only one kind of bait or feed will cause fish "partial food", long-term eat only a few kinds of nutrition, there will be nutritional inequality. You can observe and diagnose whether the appearance of the fish is too fat and thin, whether the change of body color is normal, whether there is a spirit in the eyes, and whether the swimming posture is strong. In severe cases, it will lead to a decline in immunity and infection.

VI. Drug injury

Finally, there are problems that people often overlook. Excessive medication, or incorrect medication, will leave sequelae of the fish after healing, such as internal swelling, nerve tissue injury, which may change the fish's appearance and seriously deform the body. I've seen such a hunched red dragon.

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