This kind of situation is often seen after Xinlong enters the tank or takes a large number of water changes. There are great differences in the acidity, softness and hardness between fishers' feed water and their own feed water. As a result of long-distance transportation and other causes of immune decline, secondary bacterial infection.
How to raise the gem dragon fish?
Insist on changing water for dragon fish every week.
When changing water, we need to pay attention to the need to raise water in advance, and adjust the temperature, pH value and other standards of the new water to be consistent with the old water, in line with the standard of longfish survival. It is not suitable to replace all the water every week. Only 20% - 30% of the water can be replaced each time. When changing water, we should first draw out the old water, and then slowly inject new water along the wall of the fish tank.
The dragonfish needs enough attention.
It's best to choose a suitable lamp stick to keep the dragon fish, and give the dragon fish 6-8 hours of light every day. It is worth noting that the best light of the dragon fish is the daylight during the day. If you use the light for a long time, it will darken the back of the dragon fish. So, if there is any condition, we should let the dragon fish bask in the sun more.
Feed the dragon fish regularly and quantitatively.
Feeding dragon fish should also be based on its actual situation to choose the right food. To put it simply, the juveniles should choose some small bread worms, blood worms and other foods when choosing food. When they grow up, they can eat meat, shrimp and other foods. Of course, when choosing food, we should also pay attention to diversification. Professional bait and live bait are organically matched to meet the needs of the growth and diet of longfish.
Common diseases of gemosaurus
Scale setting is a common phenomenon in the feeding process of dragon fish. There are various causes of scale setting in the daily feeding process, which cannot be generalized. Therefore, there are differences in treatment methods
Classification and treatment
（1） Change the vertical scales caused by too large water temperature difference and too large temperature change at the turn of seasons:
Predisposing factors: this kind of situation is more common, often occurs after changing water, and it is found that individual scales of dragon fish, one or several of which are raised. Most of them occur in parts of the body. However, the temperature fluctuation is not obvious after water change, even the temperature is only reduced one degree. This is the case. It's not clear why. The reasons are as follows: Although the water change is not much, the speed of water change is too fast, resulting in uneven internal temperature of the fish tank and excessive local instantaneous temperature difference of the aquarium. When changing water, the water flow accidentally impacts the body of the dragon fish, which happens to have low immunity and cause scaling.
The temperature changes greatly in spring and autumn, and no warming measures were taken in time. The sudden fluctuation of water temperature is the cause of scaling. The above two conditions are commonly known as "dragon fish cold".
Treatment: in the above two cases, only a few scales are blown open, and there are no signs of redness, swelling, congestion, exudate, and bacterial growth and infection in the scale base. Temperature rise treatment can be adopted. No other measures are necessary. Generally, the temperature rises gradually to 32 ℃ and keeps constant, and it will return to normal the next day. After warming up, it needs to be kept for more than one week. After recovering to health, cooling measures cannot be taken immediately to consolidate the curative effect and avoid repeated illness.
（2） Scaling caused by excessive fluctuation of water quality and decrease of immunity:
Predisposing factors: this kind of situation is more common after Xinlong enters the tank or takes a large number of water changes. There is a big difference in the acidity, softness and hardness between fishers' feed water and their own feed water. As a result of long-distance transportation and other causes of immune decline, secondary bacterial infection, often accompanied by mucosal damage on the body surface, the edge of the body surface scale or local blackening of the scale, and secondary scaling. In addition, the old water tank's water change quantity is too large, and sometimes the water change quantity is controlled within 1 / 3, which will still cause severe turbulence of water quality. So as to secondary scale. There are also differences in weight. Some are only part of the body. Some affect the whole body. In the outer layer, some of the scales are only slightly raised, some of them are secondary to bacterial infection, the scales are blackened, and there are redness and congestion between the scales. All of the above can be attributed to the water quality turbulence caused by excessive immunity reduction.
We should treat them differently. The edge of the scales is slightly blackened, and the secondary scales can be treated as "the old three". Generally, when the new cylinder is opened and the new cylinder is put into the tank, it is not necessary to take water change measures when the water quality is confirmed to be no problem, and the salt can be heated directly. Generally, the temperature is kept at 30-32 ℃ and kept constant. The salt needs to be measured. The lower salt mainly changes the osmotic pressure of water body, so as to sterilize, and the concentration can not reach any effect. The recognized effective concentration is 3 / 1000, and the long-term safe concentration is less than 5 / 1000. Generally, the concentration of 3 / 1000 of vertical scale treatment is enough. After salt, it needs to be observed carefully. As long as there is no sign of aggravation of scaling area, it can be cured after a week or so. If it happens that there is trauma to the dragon fish, it is often accompanied by mold growth. The dragon fish has white cotton like attachments on its body surface, which is very difficult to entangle. Often half a month or so can not recover, this kind of situation, more than the whole body scales up. Need to cooperate with drug treatment. The commonly used drugs are Aoshen No.3 and No.4, Shangye yellow powder, Aizu's Longyu universal fish disease agent, etc.
（3） Scaling caused by water quality problems:
Predisposing factors: this situation often occurs in the old water tank, the water quality management is irregular or does not change water for a long time, the filter material is too old and does not change in time, resulting in serious bacterial breeding, once the dragon fish's own immunity is low, it is easy to induce bacterial infection. The appearance of the outer layer is the damage of mucous membrane on the body surface, blackening of scales, redness and swelling, hyperemia, etc.
Treatment method: in this case, water quality adjustment measures should be taken first, but large amount of water exchange treatment should not be adopted. Generally, about 1 / 4 of the water is changed. According to the severity of the disease, choose the "old three" or drug treatment. During the period of dragon fish disease, even if the water is changed, it should not be more than 1 / 3, so as to avoid too much turbulence of water quality and increase the burden on the immune system. There are some mistakes in the work of changing water. It is mainly determined according to the actual situation that if it is raised in an old water tank, there will be problems. Taking a large number of measures to change water will certainly add to the already fragile immune system of dragonfish. However, in some cases, the whole cylinder can be replaced with water or the cylinder can be replaced directly. If Xinlong is put into the tank, the water quality of feeding water will deteriorate, resulting in bacterial infection and scaling. Directly change the dragon to the standby tank with excellent water quality for treatment, and the recovery is faster. I used to have doubts about the water change procedure used by the "old three". The subjective view is that the whole cylinder can not be replaced by water or directly during the disease is defective. But there is one thing to be sure of. During the period of long-term serious disease of dragon raised in old water tank, a large number of water changes or direct cylinder changes will directly lead to aggravation of the disease and even death. Because at the moment, the dragon's fragile vitality is not enough to resist the damage caused by the great turbulence of water quality.