CATDOLL : CATDOLL: How to raise saltwater fish?

1. How to raise saltwater fish?

How to raise saltwater fish? Your question is too broad and too professional to be answered in 3 days. Saltwater fish must be raised with seawater. It depends on what kind of saltwater organisms you raise. Different biological filtration systems are also different. They are basically the same as freshwater fish. It is best to choose a fish tank with bottom filtration. There are more equipment than raising freshwater fish. A protein skimmer is a must. If you don't have one, you can change the water every day. The filtration system needs to be powerful. The equipment should be special for seawater (salt-resistant). There is no comparison with raising freshwater fish because they are completely different organisms. To put it bluntly, raising saltwater fish is like a person doing dialysis. There are many pipes and equipment. The saltwater fish I raise at home have generators and are not afraid of power outages. If there is a power outage, the loss will be great. For details, you can go to professional forums to check it out. I hope it can help you.

2. What is the difference between natural eels and artificially cultivated eels?

To identify whether it is wild or farmed, you must first understand the type of eel. Eels are divided into multiple families such as conger eels and anguilla, and there are many species. There are more than 50 species of conger eels alone, and there are also about 10 species of anguilla. Conger eels live in the sea and cannot survive in fresh water. Eels lay eggs in the sea, and when the young mature, they return to live in freshwater rivers. The live eels on the market are mainly eels, because conger eels cannot be raised in fresh water, and the ones sold on the stalls are all dead. Anguilla, also known as white eel, has a slender body, nearly cylindrical in the front and laterally flattened in the back. The dorsal fin, anal fin and caudal fin are connected, with scales, but they are buried under the skin and are very small. You need a microscope to see them. There is a lot of mucus on the body, the upper part of the body is gray-black, the upper side edge is green, and the lower body is white. It is native to seawater and looks a bit like a snake. Conger eels look much more ferocious than eels, and their color is also darker than that of eels. They have strong teeth in both jaws, no scales, dark gray on the back, grayish white on the underside, and black edges on the dorsal and anal fins. Conger eels on the market are mainly wild, and even if they are farmed, they are mostly caught and kept temporarily. Because the cost of raising conger eels is very high, it is not cost-effective for farmers to raise them for a long time. Conger eels are larger than eels. Eels are generally between 500 grams and 1,000 grams, while conger eels are generally more than 3 kilograms.

3. What is the difference between natural eels and artificially cultivated eels?

To identify whether it is wild or farmed, you must first understand the type of eel. Eels are divided into multiple families such as conger eels and anguilla, and there are many species. There are more than 50 species of conger eels alone, and there are also about 10 species of anguilla. Conger eels live in the sea and cannot survive in fresh water. Eels lay eggs in the sea, and when the young mature, they return to live in freshwater rivers. The live eels on the market are mainly eels, because conger eels cannot be raised in fresh water, and the ones sold on the stalls are all dead. Anguilla, also known as white eel, has a slender body, nearly cylindrical in the front and laterally flattened in the back. The dorsal fin, anal fin and caudal fin are connected, with scales, but they are buried under the skin and are very small. You need a microscope to see them. There is a lot of mucus on the body, the upper part of the body is gray-black, the upper side edge is green, and the lower body is white. It is native to seawater and looks a bit like a snake. Conger eels look much more ferocious than eels, and their color is also darker than that of eels. They have strong teeth in both jaws, no scales, dark gray on the back, grayish white on the underside, and black edges on the dorsal and anal fins. Conger eels on the market are mainly wild, and even if they are farmed, they are mostly caught and kept temporarily. Because the cost of raising conger eels is very high, it is not cost-effective for farmers to raise them for a long time. Conger eels are larger than eels. Eels are generally between 500 grams and 1,000 grams, while conger eels are generally more than 3 kilograms.

4. How to culture eels in cages and the culture techniques of soft-shelled turtles and Taihu crabs

Taihu crab

eel

Turtle

5. How to culture eels in cages and the culture techniques of soft-shelled turtles and Taihu crabs

Taihu crab

eel

Turtle