In recent years, as people's living standards have gradually improved, more and more families raise ornamental fish. Because most families lack breeding techniques for ornamental fish, such technical problems often occur in the breeding process and they are not able to display their ornamental value. In order to further improve people's quality of life and taste, the common technical problems in the process of feeding family ornamental fish are described below:
I. Feeding of ornamental fish
1. Requirements of ornamental fish on water temperature and water quality Goldfish is a cold-blooded animal whose body temperature changes with changes in water temperature, but goldfish also have an optimal range of water temperature requirements (15°C-25°C), water temperature below 4°C and Above 30°C, goldfish will become ill.
Water is the environment in which goldfish survive, and the temperature difference between fresh water and the old water in the tank must not exceed 1°C each time the water is changed. Special attention should be paid to the temperature difference between day and night and the changes in winter and summer water temperatures. If the water temperature changes drastically, when the temperature difference reaches 5°C or above, the failure to take timely measures will affect the health of the goldfish. The residual chlorine in the process of tap water has a strong stimulatory effect on goldfish, so tap water for goldfish must be kept for more than 48 hours and can be used after being aerated. In summer, the residual bait, excrement, and dirt in the fish tank should be removed every day. Otherwise, the water quality becomes acidic and the amount of dissolved oxygen decreases, causing the goldfish to float. This poses a serious threat to goldfish that are suitable for alkaline water quality.
2. Feeding methods for foods Goldfish are omnivorous animals. The favorite foods are red worms, otters, leeches, rotifers, and other live baits. After these baits are collected from the river ditch, they must be washed out to remove impurities. , Disinfect with reddish potassium permanganate solution for about two minutes before feeding. The red worms that come back in summer and autumn are dried after being heated in boiling water and dried in the sun. The nutritional value is not reduced. It is the best spare food for goldfish.
Feed artificial synthetic bait, it must not be bad. Biscuits, bread, steamed buns, etc., have a single nutrition and are easy to make water become turbid. Generally, it is not suitable to use as a common food for goldfish. Goldfish is best fed regularly every day, and each feeding should not be too much. It is better to eat within 1-2 hours.
3. Prevention of aquarium fish disease Newly purchased goldfish must be sterilized by using salty brackish water at the same temperature or by using a 10-20 ppm potassium permanganate solution for 15-30 minutes, after the medicine bath, Feeding alone, observe for a week, and everything is OK before investing in an aquarium with water at the same temperature.
During the breeding process, goldfish should be sterilized on a regular basis, generally once in 1-2 months, and soaked in 2% saline or 10ppm potassium permanganate solution for 15-20 minutes. Fish equipment and containers, such as fish nets, enamel pots, etc. can be used to disinfect water, fish tanks, tile pots, etc. can be soaked with 3% saline for 24 hours, can kill bacteria and parasites.
4. The green algae in the fish tank must master the role of the algae (chlorella, water sponge, etc.) in the moderate fish tanks to protect the fish and prevent the fish from being injured by the cylinder wall. It can also increase the oxygen in the water through photosynthesis. It is beneficial to the life of the goldfish, but the green algae contains a large amount of bacteria and dirt. It is easy to damage the water, attack the fish, and consume oxygen at night. Especially in the summer, high temperatures and rapid bacterial growth cause goldfish to float at night due to lack of oxygen and difficulty in breathing. Long-term floating heads can make goldfish sick and sick. Therefore, the green algae in fish tanks must be moderated and excessively eliminated. Generally, there is a thin layer of intermittent cylinder walls.
5. Changes in the depth of water in the fish tank The water body is too deep, which affects the sun and the water temperature. Moreover, the amount of dissolved oxygen in the water is relatively low, and the relative increase in water pressure will make the goldfish repress and swim discomfort. Too shallow a body of water will affect the free swimming of goldfish, and it will also hit the wall and cause watery mildew. In summer, when the water body is too shallow and the water temperature is too high, the goldfish may suffer from “hot tail diseaseâ€. Feeding water should generally be controlled at 15-30 cm more appropriate.
Second, the treatment of several common diseases
1. Saprolegniasis Saprolegniasis is also called white disease. This disease occurs throughout the year. Early spring and late autumn are popular seasons. The disease was caused by injuries to the goldfish (fishing, changing water, cleaning up, feeding carelessly), and watery mildew caused by wound intrusion. In the early stages of this disease, goldfish had increased mucus production and redness at the injury site. At the later stage of the wound, many cotton-like white hyphae were produced and congested, necrotic and ulcerated. Sick fish showed irritability, abnormal activity, loss of appetite, and finally died of depression.
Treatment method: soaking the fish body with 2% saline solution, 30 minutes in summer, extend the time in winter, for 3 consecutive days, the effect is good;
2, white spot disease This disease occurs mostly in late spring or early autumn, when the water temperature is 16 °C - 24 °C is the popular season. White spot disease is caused by parasitoids parasitizing fish. There are many small white dots on the body's surface, lids, and fins. In severe cases, the whole body is covered with a layer of white frost (white mucus), which makes the goldfish dark in color, lacks luster, has weak swimming, and almost stagnant growth. Often float on the water.
Treatment: 1 When the water temperature is lower than 10 °C or higher than 28 °C, the small melon worms basically died. Therefore, the simplest and most convenient method for this disease is to slowly raise the water temperature to 28°C and kill it for 1-2 days. 2Salt is the natural enemies of the small melon worm and can be soaked in 2% saline solution. 20 minutes in summer and 30 minutes in winter. 0.5ppm of malachite green solution bath fish body, summer 15 minutes, winter 20 minutes, have a certain effect.
3, pine scale disease This disease is more prevalent in the water temperature season, early spring and late autumn multiple. At this time, due to the cooler waters and large climate changes, goldfish older than 1 year old became ill. In the early stages, some of the scales of the diseased fish spread out like a loose ball. The base of the scales is filled with blood and swelling, and the abdomen begins to expand. In the later stages, the scales were all erected, with both eyes protruding outwards and the abdomen swelled and soft. There was a lot of effusion, which caused the body of the goldfish to lose balance, slow movement, and loss of appetite.
Treatment: Fish was soaked in 2% saline solution for 15 minutes a day for 3 consecutive days.
Fuyang City Water Conservancy Extension Station Du Zhongchen
I. Feeding of ornamental fish
1. Requirements of ornamental fish on water temperature and water quality Goldfish is a cold-blooded animal whose body temperature changes with changes in water temperature, but goldfish also have an optimal range of water temperature requirements (15°C-25°C), water temperature below 4°C and Above 30°C, goldfish will become ill.
Water is the environment in which goldfish survive, and the temperature difference between fresh water and the old water in the tank must not exceed 1°C each time the water is changed. Special attention should be paid to the temperature difference between day and night and the changes in winter and summer water temperatures. If the water temperature changes drastically, when the temperature difference reaches 5°C or above, the failure to take timely measures will affect the health of the goldfish. The residual chlorine in the process of tap water has a strong stimulatory effect on goldfish, so tap water for goldfish must be kept for more than 48 hours and can be used after being aerated. In summer, the residual bait, excrement, and dirt in the fish tank should be removed every day. Otherwise, the water quality becomes acidic and the amount of dissolved oxygen decreases, causing the goldfish to float. This poses a serious threat to goldfish that are suitable for alkaline water quality.
2. Feeding methods for foods Goldfish are omnivorous animals. The favorite foods are red worms, otters, leeches, rotifers, and other live baits. After these baits are collected from the river ditch, they must be washed out to remove impurities. , Disinfect with reddish potassium permanganate solution for about two minutes before feeding. The red worms that come back in summer and autumn are dried after being heated in boiling water and dried in the sun. The nutritional value is not reduced. It is the best spare food for goldfish.
Feed artificial synthetic bait, it must not be bad. Biscuits, bread, steamed buns, etc., have a single nutrition and are easy to make water become turbid. Generally, it is not suitable to use as a common food for goldfish. Goldfish is best fed regularly every day, and each feeding should not be too much. It is better to eat within 1-2 hours.
3. Prevention of aquarium fish disease Newly purchased goldfish must be sterilized by using salty brackish water at the same temperature or by using a 10-20 ppm potassium permanganate solution for 15-30 minutes, after the medicine bath, Feeding alone, observe for a week, and everything is OK before investing in an aquarium with water at the same temperature.
During the breeding process, goldfish should be sterilized on a regular basis, generally once in 1-2 months, and soaked in 2% saline or 10ppm potassium permanganate solution for 15-20 minutes. Fish equipment and containers, such as fish nets, enamel pots, etc. can be used to disinfect water, fish tanks, tile pots, etc. can be soaked with 3% saline for 24 hours, can kill bacteria and parasites.
4. The green algae in the fish tank must master the role of the algae (chlorella, water sponge, etc.) in the moderate fish tanks to protect the fish and prevent the fish from being injured by the cylinder wall. It can also increase the oxygen in the water through photosynthesis. It is beneficial to the life of the goldfish, but the green algae contains a large amount of bacteria and dirt. It is easy to damage the water, attack the fish, and consume oxygen at night. Especially in the summer, high temperatures and rapid bacterial growth cause goldfish to float at night due to lack of oxygen and difficulty in breathing. Long-term floating heads can make goldfish sick and sick. Therefore, the green algae in fish tanks must be moderated and excessively eliminated. Generally, there is a thin layer of intermittent cylinder walls.
5. Changes in the depth of water in the fish tank The water body is too deep, which affects the sun and the water temperature. Moreover, the amount of dissolved oxygen in the water is relatively low, and the relative increase in water pressure will make the goldfish repress and swim discomfort. Too shallow a body of water will affect the free swimming of goldfish, and it will also hit the wall and cause watery mildew. In summer, when the water body is too shallow and the water temperature is too high, the goldfish may suffer from “hot tail diseaseâ€. Feeding water should generally be controlled at 15-30 cm more appropriate.
Second, the treatment of several common diseases
1. Saprolegniasis Saprolegniasis is also called white disease. This disease occurs throughout the year. Early spring and late autumn are popular seasons. The disease was caused by injuries to the goldfish (fishing, changing water, cleaning up, feeding carelessly), and watery mildew caused by wound intrusion. In the early stages of this disease, goldfish had increased mucus production and redness at the injury site. At the later stage of the wound, many cotton-like white hyphae were produced and congested, necrotic and ulcerated. Sick fish showed irritability, abnormal activity, loss of appetite, and finally died of depression.
Treatment method: soaking the fish body with 2% saline solution, 30 minutes in summer, extend the time in winter, for 3 consecutive days, the effect is good;
2, white spot disease This disease occurs mostly in late spring or early autumn, when the water temperature is 16 °C - 24 °C is the popular season. White spot disease is caused by parasitoids parasitizing fish. There are many small white dots on the body's surface, lids, and fins. In severe cases, the whole body is covered with a layer of white frost (white mucus), which makes the goldfish dark in color, lacks luster, has weak swimming, and almost stagnant growth. Often float on the water.
Treatment: 1 When the water temperature is lower than 10 °C or higher than 28 °C, the small melon worms basically died. Therefore, the simplest and most convenient method for this disease is to slowly raise the water temperature to 28°C and kill it for 1-2 days. 2Salt is the natural enemies of the small melon worm and can be soaked in 2% saline solution. 20 minutes in summer and 30 minutes in winter. 0.5ppm of malachite green solution bath fish body, summer 15 minutes, winter 20 minutes, have a certain effect.
3, pine scale disease This disease is more prevalent in the water temperature season, early spring and late autumn multiple. At this time, due to the cooler waters and large climate changes, goldfish older than 1 year old became ill. In the early stages, some of the scales of the diseased fish spread out like a loose ball. The base of the scales is filled with blood and swelling, and the abdomen begins to expand. In the later stages, the scales were all erected, with both eyes protruding outwards and the abdomen swelled and soft. There was a lot of effusion, which caused the body of the goldfish to lose balance, slow movement, and loss of appetite.
Treatment: Fish was soaked in 2% saline solution for 15 minutes a day for 3 consecutive days.
Fuyang City Water Conservancy Extension Station Du Zhongchen