CATDOLL : CATDOLL: Can wild catfish be kept in fish tanks?

1. Can wild catfish be kept in fish tanks?

Can't.

Zhang Can, a Chinese fishing enthusiast, said that some of the armored catfish in Houston rivers may have been released by pet owners. He said that some pet owners were not prepared for their rapid growth, and when the armored catfish grew up quickly, the fish tanks could not accommodate them, but they could not bear to kill them, so they had to release them back into the wild.

According to the U.S. Wildlife Service, Houston rivers have recently been occupied by introduced catfish, which have no natural enemies and reproduce rapidly. What's more serious is that the introduced catfish like to dig holes in the river banks, which not only creates the risk of bank breaches but also makes the clear water turbid.

Catfish require a high oxygen content in the water, so it is impossible for them to eat slop and rotten garbage. The garbage fish mentioned in the media reports may be the leather-bearded catfish from Southeast Asia, which has been misrepresented because of its miscellaneous food. The leather-bearded catfish is a subtropical fish, does not taste good, and will die when the temperature drops below 12 degrees.

Additional information:

Catfish mainly live in the middle and lower layers of rivers, lakes, reservoirs and ponds, and are mostly active in coastal areas. They hide in grass, under rocks or in deep water during the day and forage frequently at night.

After autumn, they live in deep water or mud to hibernate, and their feeding rate also decreases. They are carnivorous fish, and their prey are mostly small fish, such as mullets, crucian carp, goby, wheatear fish, carp, loach, etc. They also eat shrimps and aquatic insects. They mainly swallow food, and the function of their teeth is mainly to prevent food from escaping.

Reference source: Baidu Encyclopedia - Catfish (fish name)

Reference source: China News Service - Random release of catfish! Chinese Americans in Houston want to "eliminate the harm to the people" (photo)

Of course you can, I have one too. But it's best if there are only catfish in the fish tank, no other fish and shrimp, because the catfish will eat them. 1. Put the catfish in a temporary tank for a while. 2. It's best to plant a water plant in the fish tank, put some sand and pebbles, to more realistically simulate the wild living environment of catfish. Use a covered fish tank to prevent catfish from jumping out of the tank. 3. Put the catfish in the fish tank. 4. Feed the catfish with small fish, shrimp and meat. 5. Change the water once a week and use a small fish net to scoop it out. It's best to use natural running water [river water, lake water], if not, use tap water that has been exposed to the sun for two days. Catfish have strong vitality, and sometimes it's okay to change the water a little later. Soon it will adapt to life in the fish tank.

2. Is Golden Beard a tropical fish?

It must be. It is a tool fish among tropical fish.

Dragon fish include golden dragon, red dragon, blue dragon, silver dragon, etc. In addition, there are Manlong, Fairy, Lili, Fortune, etc. Next are blue shark, sweat shark, fortune cat, Persian cat and other catfish, as well as Thai crucian carp, scavenger, etc.

The golden beard is a tropical fish, but I don't know what the one on your body is.

3. Are Qingjiang fish and catfish the same fish?

Qingjiang fish and catfish are not the same fish.

Qingjiang fish refers to fish produced in the Qingjiang Reservoir area of ​​Hubei Province, which is known as the "Province of Thousand Lakes" and is a unique aquatic product of Hubei. The "Qingjiang fish" trademark has been registered with the State Administration for Industry and Commerce. The Changyang "Qingjiang fish" brand is favored by domestic and foreign merchants for its excellent growth environment, tender meat, no muddy smell, and safe consumption.

Catfish have 4 whiskers on their mouth, the upper ones are longer and the lower ones are shorter. Their heads are flat and their tails are flattened. They are carnivorous and mostly found in the wild. They do not require high water quality and can be cultivated artificially. They grow very fast and some species can grow very large. Catfish mainly live in the middle and lower layers of rivers, lakes, reservoirs and ponds. They are active in coastal areas. They hide in bushes, under rocks or in deep water during the day and forage frequently at night.

Additional information

Fish are cold-blooded aquatic vertebrates covered with bony scales, breathing with gills, swimming through the swinging of the tail and trunk and the coordinated action of the fins, and feeding with the upper and lower jaws. They belong to the subphylum Vertebrata in the phylum Chordata.

Fish are mainly divided into tropical fish, temperate fish and cold-zone fish, etc., and aquatic fish are divided into freshwater fish and saltwater fish.

The digestive system of fish consists of the digestive tract and digestive glands. The digestive tract has been differentiated into the stomach and intestines, and there is also an obvious pancreas. Since fish live in water all their lives, their digestive organs and feeding habits are adapted to living in water. The mouth is located between the upper and lower jaws, and there are no salivary glands in the mouth. Fish have real teeth in the oropharyngeal cavity, and can actively ingest and hunt. They are more advanced than the Cyclostomata.

Nutritional information of fish:

1. Rich in complete protein. Fish meat contains a lot of protein, such as yellow croaker contains 17.6%, hairtail contains 18.1%, mackerel contains 21.4%, silver carp contains 18.6%, carp contains 17.3%, and crucian carp contains 13%.

2. Low fat content, mostly unsaturated fatty acids. The fat content of fish is generally low, most of which are only 1% to 4%, such as 0.8% in yellow croaker, 3.8% in hairtail, 4% in mackerel, 4.3% in silver carp, 5% in carp, 1.1% in crucian carp, 0.9% in bighead carp (fathead fish), and 0.7% in cuttlefish.

3. High content of inorganic salts and vitamins. Both marine fish and freshwater fish are rich in sulfur, as well as inorganic salts such as phosphorus, calcium, and iron. Fish also contains a large amount of vitamin A, vitamin D, vitamin B1, and niacin. These are nutrients needed by the human body.

Reference: Baidu Encyclopedia - Fish

Qingjiang fish and catfish are not the same fish.

Different living environment: Qingjiang fish is a fish that lives in mountain spring water. This fish needs to live in waters with a relatively moderate acidity and alkalinity, while catfish is a fish that lives in swamps and ponds.

Different head: The head of catfish is obviously larger and flatter than that of Qingjiang fish. Generally, the head of fish is larger than the body.

Different fins: Catfish has only one dorsal fin on its back, and it is small. Qingjiang fish has two dorsal fins, one in front and one at the tail. The tail is the fleshy dorsal fin.

Difference in body shape: The body of Qingjiang fish is a bit flat, while the body of catfish is relatively round, giving a fat and round feeling.

5. Weight difference: Catfish can be raised to be very large, the largest catfish can be larger than a human being, and can weigh several thousand. Clearwater fish are generally smaller, and this type of fish lives in spring water, so they are not very large.

Additional information:

Qingjiang fish refers to fish produced in the Qingjiang Reservoir area of ​​Hubei Province, which is known as the "Province of Thousand Lakes" and is a unique aquatic product of Hubei. The "Qingjiang fish" trademark has been registered with the State Administration for Industry and Commerce. The Changyang "Qingjiang fish" brand is favored by domestic and foreign merchants for its excellent growth environment, tender meat, no muddy smell, and safe consumption.

Catfish have 4 whiskers on their mouth, the upper ones are longer and the lower ones are shorter. Their heads are flat and their tails are flattened. They are carnivorous and mostly found in the wild. They do not require high water quality and can be cultivated artificially. They grow very fast and some species can grow very large. Catfish mainly live in the middle and lower layers of rivers, lakes, reservoirs and ponds. They are active in coastal areas. They hide in bushes, under rocks or in deep water during the day and forage frequently at night.

References:

Qingjiang fish - Baidu Encyclopedia

Catfish - Baidu Encyclopedia

If you don't look carefully, many people can easily confuse Qingjiang fish and catfish. Here's how to distinguish between the two fish:

Different living environment: Qingjiang fish is a fish that lives in mountain spring water. This fish needs to live in waters with a relatively moderate acidity and alkalinity, while catfish is a fish that lives in swamps and ponds.

Different head: The head of catfish is obviously larger and flatter than that of Qingjiang fish. Generally, the head of fish is larger than the body.

Different fins: Catfish has only one dorsal fin on its back, and it is small. Qingjiang fish has two dorsal fins, one in front and one at the tail. The tail is the fleshy dorsal fin.

Difference in body shape: The body of Qingjiang fish is a bit flat, while the body of catfish is relatively round, giving a fat and round feeling.

Differences in fish mouths: The mouth of Qingjiang fish is a bit flat and wide, and the whiskers are relatively short, with two whiskers in total. The mouth of catfish is arc-shaped and relatively round, and the whiskers are also long, with four or more whiskers.

Difference in fish belly: The belly of catfish is light gray or white, but the belly of Qingjiang fish is basically the same color as the body, with no change.

Difference in body length: Catfish is larger than Qingjiang fish, and Qingjiang fish is about the same size as yellow croaker.

Different tails: The catfish's tail is round and fan-shaped, while the Qingjiang fish's tail is forked like that of ordinary fish.

Weight difference: Catfish can be raised to be very large, the largest catfish can be larger than a human being, and can weigh several thousand. Clearwater fish are generally smaller, and this type of fish lives in spring water, so they are not very large.

Qingjiang fish, also known as rice, commonly known as rice field fish, fish eye girl, English name 'Medaka', commonly known as 'Rice Fish', is a species of the order Gnathoideae of the class Actinopterygii. It is distributed in East Asia and Southeast Asia, including the freshwater waters of China, Japan, South Korea, Vietnam, Myanmar, Thailand, Laos, Cambodia, and Taiwan.

Catfish, the same as catfish. There are many species, the most common ones are catfish (native catfish), bigmouth catfish, bearded catfish (pond catfish), leather bearded catfish (Egyptian bearded catfish), and Hakka commonly known as slippery fish.

Please order Bilian:

Although it is said that businessmen are shameless when they see money, they are afraid that the bad reputation of African catfish will affect sales, so they dare to say that catfish is only one kind in Egypt? Is your catfish not a catfish?

Qingjiang fish is American catfish, not a domestic fish at all. Some regions are afraid that the reputation of catfish will affect themselves, so they shamelessly tell lies, saying that the fish has a thousand-year history and a long history. Isn't it funny?

Huiyu, Qingjiang, and Suobian are all catfish. The order Siluriformes is collectively referred to as catfish. Do you know how many there are? There are about 2,200 species in 31 families! It's the same as the order Perciformes!