Can a round fish tank affect the health of ornamental fish? Some people think that long-term use of round fish tanks will affect the eyes of ornamental fish and even lead to insomnia. So, will the round fish tank affect the health of ornamental fish? How can we protect the health of ornamental fish? Let's have a look.
Will the round fish tank affect the health of ornamental fish 1 According to the information on the Internet, it is not difficult to find that there are indeed some posts mentioning that some European countries have banned the production of round fish tanks because the light generated by the arc inside the round fish tank is harmful to the eyes of goldfish, but there is not much information about this in China. I decided to go to the flower, bird, fish and insect market to see what the market in Shenyang is like now.
If you go to the current aquarium market, you can find that square fish tanks and round fish tanks are still on sale. Some fish sellers put goldfish in round fish tanks, and some put them in square fish tanks, which is not very uniform. Li Shifu, who has been selling 10 fish here for many years, said that there is no need to pay attention to what kind of fish tank to choose. Goldfish can use round or square tanks, and tropical fish can also use them. No matter what kind of fish tank is used, as long as the space is large enough and the temperature is suitable for the survival standard of this species, there is no problem.
As for whether a round fish tank can blind goldfish eyes, Li Shifu said that he had never heard of it, and several fishmongers around him shook their heads. However, Li Shifu also said that goldfish used to be kept in round fish tanks, which looked more festive, but now square fish tanks, especially white glass fish tanks and aquariums, are very popular, and there are fewer and fewer places selling round fish tanks in the fish market.
When I was sorting out the information, I found a report that invited experts to dispel doubts. Professor Liu Wenbin from the Department of Fisheries, College of Animal Science, Nanjing Agricultural University told the reporter that although they have not done any specific experiments that feeding goldfish in a round goldfish bowl will lead to blindness for a long time, past studies and experiments have shown that feeding goldfish in a round goldfish bowl will indeed bring about vision loss. Liu Wenbin said, first of all, goldfish is a famous "myopia" among animals. The lens in the eye is round and oval, so it looks as if you are wearing a pair of glasses with short focal length but deep degree, and you can only see objects at a close distance of about 2 meters. In addition, ornamental fish have a characteristic in breeding, that is, they especially like to swim in the fish tank and rarely swim in the middle of the tank. In a round goldfish bowl, the glass is bent everywhere, which inevitably leads to poor eyesight.
He said that goldfish look at the outside world in a round fish tank, just like humans look at the mirror, and they are all deformed. Liu Wenbin said that goldfish who have been nearsighted for a long time will see the outside world through curved glass, and the lens in their eyes will become more and more round, the focal length will become larger and larger, and the distance they see will become shorter and shorter, resulting in decreased vision. Liu Wenbin told reporters that he had never done an experimental study on goldfish blindness, but according to the above analysis, it is better to use less round goldfish tanks to raise ornamental fish.
In addition, many fish friends find that it is more prone to turbid water quality when raising fish in cylindrical fish tanks. Of course, there are many reasons for water turbidity. Don't blindly think that it's just the shape of the fish tank, but also analyze it from other angles to find the root cause. However, in order to appreciate the eyes of fish, it is necessary to use round fish tanks as little as possible to raise fish.
Can a round fish tank affect the health of ornamental fish? 2.
Fancy fish
It is very important to pay close attention to the health of ornamental fish in the process of raising them. However, because fish is a living thing, it is not easy to observe, especially in the landscape tank where aquatic plants are densely planted; Only by observing the health status of fish seriously and persistently can the breeder make a correct decision before the problem occurs.
The health of fish should be carefully observed before deciding to buy, because fish with poor health is often the cause of disease infection in the aquarium in the future, which is very destructive to an aquarium with stable condition.
Before buying, you should consider:
1, the healthy state of fish-whether it is a lively and normal fish.
2. Harmony between new fish and other fish-whether there will be fighting or cannibalism.
3. Feeding space-whether there are enough remaining aquarium space resources to accommodate new fish and then fully mature.
When the new fish can meet the above conditions, it can formally make a purchase decision. On weekdays, the observation of fish culture is one of the important tasks besides testing water quality and feeding bait. It is difficult for fish to observe when swimming at ordinary times, and most fish are timid to avoid because of the flicker of light and shadow; Therefore, it is suggested that breeders should observe carefully when feeding bait every day. The observation at this time includes the observation of the state of the fish itself and the observation of the interaction between the fish and the feeding environment.
The observation of the fish's own state directly affects the interest in feeding, and only healthy fish with normal color can get the attention of the breeder himself.
The body surface of healthy fish should be smooth, the secretion of mucosa on the body surface should be normal, and each fin should be transparent and bright; Generally speaking, healthy fish should have clear eyes (eye mask) and no dirt; Nose, gill tissue, fins and anus should not be congested or other abnormal conditions ... Therefore, when fish lack the above conditions, the breeder should find out the factors that affect (lead to) this situation and improve it quickly. Observing the state of fish and fish or fish and the surrounding feeding environment should also be the focus of observation.
In addition, regular water change, regular water quality testing, etc. are all necessary conditions for a responsible aquarium enthusiast, especially for some aquarium enthusiasts engaged in aquaculture or aquaculture, the concept of "feeding process" is even more important!