Can omnivorous fish scavenger fish eat? How old can you grow up? How much is the market price per jin? What kind of fish do you mix with? How do you raise it?

Scavenger fish, also known as sucker fish, catfish, lower mouth catfish, multi-winged catfish, angler mouse, is a kind of miscellaneous fish, which is cultivated as ornamental fish because of its high ornamental value. Can scavenger fish be eaten? How old can you grow up? How much is the market price per jin? What kind of fish do you mix with? How do you raise it?

Can I eat it?

Scavenger fish native to Latin America, they can grow a large one in the place of origin, is an edible fish, is non-toxic. But in fact, exoskeleton fish, exoskeleton hard, more bones, less meat, and low nutritional value, and because of eating dirty food, it has more bacteria in the abdomen, smelly, so generally not recommended to eat.

How old can you grow up?

Scavengers can grow up to 250mm in a suitable environment and eat a lot of food in adulthood. in addition to algae such as moss, they often eat the eggs of other fish. They can eat 3000 to 5000 eggs a day and swallow a lot of fish fry. At the same time, because it is an alien species, there are no natural enemies in China, so it is easy to breed in large numbers in rivers, which will threaten the survival of local fish and destroy the ecological chain.

The latest market price:

The price of doffer fish is generally cheap. according to different places, you can buy it from a few yuan to more than ten yuan. Shanghai 3 cm 10 cm about 2 yuan 10 yuan, Fuzhou 3 cm 5 cm about 8 yuan 20 yuan, Quanzhou leopard scavenger or pipa scavenger 10 cm 11 cm about 35 yuan each The average street sweeper in Guangzhou is about 3 yuan for 15 centimeters, 98 yuan for 25 centimeters, 34.20 yuan for 4 centimeters for leopard scavengers, 25 yuan for 8 centimeters in Dongguan, 15 yuan for 10 centimeters in Hangzhou, 15 yuan for 10 centimeters in Lishui, 9.90 yuan for 10 centimeters in Beijing and 15 yuan for 15 centimeters. Chengdu 7 cm is about 10 yuan each, and 12 cm is about 15 yuan each.

What kind of fish do you mix with?

Rose fish

The rose fish is distributed in the coral reef area from the Indian Ocean to the Pacific Ocean. It is carnivorous and can be fed with animal bait and artificial feed. It is suitable for invertebrate aquarium with a water temperature of 26 degrees, a specific gravity of 1.022 and a water volume of more than 100L. The maximum body length can reach 10 cm. Once adapted to the life in the aquarium, most of the live bait and dry feed can be accepted, but do not eat flake feed. Do not mix with agile, gluttonous fish, otherwise the rosefish will not be able to get the food, and it is best to feed it at night, which is in line with its nocturnal lifestyle and helps to accept new food.

Goldfish

The goldfish is also known as Baiyunshan fish, Baiyun gold fillet, red tail fish, tang fish and so on. It is a famous ornamental fish with a brown back and a silvery white abdomen. There is a golden or silver-blue longitudinal stripe along the middle of the body. There are several dark brown lines above and below the stripe, and there are 1 red round spot at the base of the tail stalk, golden iris, red at the base of the dorsal fin, yellow and green other fins, and transparent edges. This fish was originally found in Baiyun Mountain Creek on the outskirts of Guangzhou, China, so it is called Baiyun Mountain Fish in English.

Zebrafish

Zebrafish, also known as blue striped fish, striped fish, blue zebrafish, Indian fish, Indian zebrafish, etc., have a lengthened and slightly spindle-shaped body, a small and pointed head, a short kiss, and a number of dark blue longitudinal stripes that are arranged alternately with silver-white or golden longitudinal stripes, so they are known as zebrafish when swimming in groups in the aquarium as if they were running in the African prairie. Zebrafish and human genes have a high degree of homology of 87%, and the advantage as a model organism is outstanding, which means that the experimental results are suitable for human beings in most cases, and can be used to monitor the water quality environment. Zebrafish is also a kind of fish that is easy to raise.

Tiger skin fish

Tiger skin fish scientific name Sijianyu, also known as four fish, four crucian carp, etc., the country of origin is Malaysia and Indonesia's Sumatra, Kalimantan and other inland waters, tall, like a diamond, side flat, 5 '6cm long, body color tone light yellow, covered with red markings and small spots, there are 4 vertical black stripes from head to tail, spotted like tiger skin, dorsal fin high, located in the middle of the back, tail stalk short, tail fin deep fork-shaped. Good gregarious, quick and lively swimming, adult fish will attack other fish, especially like biting filamentous fins, should not be mixed with filamentous fin fish (such as fairy fish), should be raised in the same group.

Culture techniques:

1. Water quality: the water quality of artificially raised tropical fish is soft water or low hardness water, and the pH value is weak acid or neutral. Strong acidity, tropical fish breathing difficulties, slow growth, strong alkalinity, tropical fish Gill tissue will be corroded.

2. Change water: part of the change of water is to suck out the feces, residual bait and other dirt from the bottom of the fish tank with a straw, and the amount of water absorbed should be 1 / 4 of the amount of water in the tank, and then add the same amount of fresh water dried or chemically dechlorinated at the same temperature. the frequency of mixing water is 2 times a week in autumn and winter and 3 times a week in spring and summer. All water change should take out all the equipment in the fish tank, remove the water plants and fish, put them in other containers at the same temperature as the original water, scrub the cylinder wall and bottom with a sponge and change the water every 3 to 4 months.

3. Water temperature: tropical fish are extremely sensitive to temperature. If the temperature is not suitable, they will die quickly. Different species of tropical fish have different requirements for water temperature. Most tropical fish should have a water temperature of 20-24 ℃. During the breeding season, the water temperature should be 25-28 ℃, and the temperature difference between day and night should not exceed 4 ℃.

4. Oxygen: a certain number of aquatic plants should be planted in the fish tank, because aquatic plants produce oxygen during photosynthesis, which increases the oxygen content in the water. At the same time, timely removal of dirt, frequent water change, etc., can also increase dissolved oxygen in the water.

5. Lighting: put a fish tank in a sunny room, preferably in the morning and evening when there is not enough sunlight, each receive about an hour of sunlight. If you install a fish tank in a room without sunlight, you should use light to illuminate aquatic plants. Use 60 watts of incandescent bulbs or 40 watts fluorescent lamps for 6 hours a day. Light can make tropical fish grow faster and make the fish more colorful.

6. Stocking: the stocking density of tropical fish in the tank depends on the size of the tank. For people who raise fish for the first time, the smaller the density, the better, and need to be equipped with an inflatable pump. Quiet fish can not be mixed with aggressive fish, and large fish can not be mixed with small fish. There are a variety of feed options for tropical fish, such as fish insects, red insects or packaged feed suitable for different kinds of tropical fish. Raw baits and live baits should be washed to control the source of the disease.