Red swordfish, which belongs to the family Killidae, is also known as red sword and swordfish. It is produced in South America and is an artificially cultured ornamental fish. It is mainly distributed in Mexico, Guatemala and other places. The biggest feature of this fish is its fiery red body. Because of this, it is favored by more fish keeping enthusiasts. The red swordfish growing in nature has a square body and a light blue-green color. Due to artificial breeding, the body colors of red swordfish are more colorful, including red, white, blue and so on. Among them, the representative fish include red swordfish, green swordfish, white swordfish, black-fin red swordfish, black-fin white swordfish, etc.!

1. Appearance characteristics of red swordfish

The male red swordfish has a needle-shaped fin attached to its tail fin, which is called a sword tail, while the female fish has no sword tail. The body length of the small red swordfish is about 7 to 10 centimeters, and it is square in shape, with a pointed head and a long tail. The red swordfish is bright red all over, so it will be the most attractive fish in the fish tank. In addition, the male red swordfish has a "long sword" attached to its body, while the body of the female fish is round. You can tell whether it is male or female at a glance, but this kind of fish is not common among fish!

2 Habits and Characteristics of Red Swordfish

1. Personality characteristics

The red swordfish is docile by nature and is a typical tropical fish. It can be mixed with other fish species, but some small tropical fish will occasionally be attacked by other fish species. The little guy also likes to bite the tail of fish. In addition, the red swordfish is lively and active. When the male fish is in danger or frightened, it will keep jumping

2. Food and appropriate temperature

The appearance of red swordfish is extremely beautiful. The body length of red swordfish growing in the place of origin is generally about 8 centimeters, and when artificially bred, its body length is about 12 centimeters. Red swordfish has a strong and powerful body, is easy to breed, and is never picky about food. Its food is omnivorous, and it can accept any earthworms, red worms, or artificially prepared bait. For red swordfish, the best water quality is weakly acidic or weakly alkaline. In addition, small fish have strong cold resistance, and the optimal temperature is 20 to 26 degrees Celsius. In fact, the most suitable temperature is 24 degrees, but parents should decide according to the specific situation. During the breeding process, parents can add a cover at the bottom of the fish tank, which will help the red swordfish grow better!

3.Characteristics of reproduction

Adult red swordfish generally reach sexual maturity when they are seven months old and can mate at this time. Red swordfish like to live in groups. Female fish give birth to young through internal fertilization. It should be noted that the anus of female fish will show black fetal spots before giving birth. At this time, parents should take the female fish out of the water tank that is about to give birth. When breeding, try to create a quiet, comfortable and warm production environment for it to prevent the fish from being frightened and causing dystocia! Generally speaking, after they give birth to a litter, they can give birth to another baby after about a month.to start a litter. The female fish takes very good care of the newly born fry. After three months, the males and females can be easily distinguished!

3. Precautions for raising red swordfish

Before raising it, parents must first prepare a fish tank for it. The size of the fish tank should depend on the number of red swordfish. It is recommended to buy a larger fish tank, which will allow the fish to have more space for activities! At the same time, the fish tank has Oxygen supply equipment should be installed. When fish are deprived of oxygen, they will gather near the water surface. At this time, the oxygen supply can be turned on. If there is no oxygen device, you can change the water for the fish frequently and pump out half of the old water. Go, remember not to smoke too much, otherwise the red swordfish will feel uncomfortable. Some parents are unwilling to change the water, so it is recommended to feed it some live fish and insects, preferably once a day! At the same time, parents can prepare heating tubes, which can be used when the weather gets colder!

4. Life span of red swordfish

The lifespan of such a beautiful and moving red swordfish must be the issue that everyone is most concerned about. Generally speaking, the life span of red swordfish is 3-5 years. If they are raised properly, they may live for about five years. This kind of fish is easy to raise. As long as you adopt the correct feeding method, its life span will not be too short.