Are scavengers harmful? What harm scavengers do to humans

Harm to fish: Scavenger fish have a strong ability to eat moss when they are young, but when they are adults, they will no longer eat moss, and they will also have the habit of sucking fish. In addition, adult scavengers also like to eat fish eggs, and some scavengers who have not had food for too long will also eat small fish.

Harm to the environment: Scavengers are invasive alien species and have no natural predators in the wild in our country. If they are released into the wild, they will damage the local ecological environment.

1. Harm to fish: When the scavenger was young, he would eat the moss and algae in the fish tank, and he would also eat some food left by the fish. However, when they become adults, they will prefer meat and will have the habit of sucking fish.

If other fish in the tank are injured, they will keep sucking the mucus from the other fish until they die. When the fish die, the scavenger quickly eats their carcass. In addition, the scavengers also like to eat fish eggs.

In very hungry cases, they will also eat smaller fish.

2. Harm to the environment: scavenger fish are invasive alien species, they have strong adaptability, and they are harmful to the environment, plus they have no natural enemies in our country, if accidentally released into the wild, it will seriously damage the local ecological environment.

If the scavenger doesn't want to raise it, you can choose to give it away, or you can ask the local aquarium if it's **. Under normal circumstances, aquariums are ** fish. If they can't be gifted, they can be killed.

It is important to note that scavengers cannot release animals because they have no natural predators in the wild in our country, and if they are released into the wild, they compete with local fish for food and eat the eggs of other fish. Moreover, their reproduction is relatively large, and if left unchecked, the native fish are likely to disappear.

Harmful. Scavenger fish are suitable as scavengers because of their habit of sucking algae and benthic animals. However, polyculture with mild or small fish should not be avoided.

If it reproduces in large numbers, it will devour the eggs of other fish, leading to the extinction of other fish. There are no natural predators in China yet, so be cautious. It cannot be released, and in some parts of the south, the fish has been overrun, resulting in the extinction of the native fish of the entire river!

Scavenger fish has the potential to lead to the extinction of other fish, the survival of a large number of fish, the destruction of the aquatic ecological environment and other hazards, it can not be eaten, because of the miscellaneous diet, so it can really clean the fish tank.

ScavengersThere are four main hazards:

Clause. 1. Scavengers eat fish eggs;

Clause. Second, the scavenger fish will also attach to other fish and affect other fish;

Clause. 3. Scavengers will also eat a lot of decorative seaweed by mistake.

Clause. Fourth, scavengers are also prone to overflow, causing invasive species.

As the most common tool fish, although the scavenger can eat the bait that falls on the bottom of the water, it is helpful to purify the water quality, but the effect is not obvious, and the ornamental nature itself is not strong, and it will cause harm to other fish, so it is not recommended to breed, if you want to improve the water environment, you still need to filter and change the water.

Ways to get rid of scavengers

1. Buried alive. The most direct way to kill a scavenger is to bury the scavenger alive. Scavengers should not be stocked in ponds or rivers at will, as they will pose a threat to other fish species and lead to ecological balance.

Lost in ambush and searched.

2. Freezing. Scavengers are tropical aquarium fish that are afraid of low temperatures and can put scavengers in the freezer.

Freeze the scavenger to death. When the scavenger is dead, find a sparsely populated location for burial.

3. Cook. You can also scald the scavenger to death with high temperature with water like an ordinary fish, but don't eat it. Scavengers have no nutritional value, there may be a lot of bacteria, and they are not tasty, and eating them is not good for Jensen's body.

The dangers of scavengers

1. Destroy the aquatic ecological environment.

In addition to eating fish, scavenger fish also eat a large number of native aquatic plants, and spread diseases, destroy the nutritional structure and biological chain, thereby destroying the aquatic ecological environment.

2. Survive in large numbers.

Scavenger fish has a strong reproductive ability, breeding twice a year, can lay more than 2,000 eggs at a time, the survival rate is very high, fish eggs can become fry in about four days, even in the case of lack of water.

3. Cause the extinction of other fish.

Scavenger fish, native to Latin America, is an alien species that grows and reproduces easily in water, and has not been found to have natural enemies during farming, so no natural enemies have been found. Once released, it feeds on other fish eggs, eating 3,000-5,000 eggs a day, leading to the extinction of other fish.

Introduction to Scavengers

The scavenger is named because he likes to eat the bait and dirt of the aquarium and purifies the water, so it is also known as the sucker fish, the suction catfish, the scientific name is the catfish, which is native to the rivers of South America and can often be seen in Central America.

The body of the fish is semi-cylindrical, the tail fin is shallow fork-shaped, and it likes weak acidic soft water, suitable for water temperature of more than 2 0, and the body length of the adult fish reaches 3 0 cm, and it can not overwinter naturally, and it is active in the bottom of the water body. At first, it was welcomed by consumers and farmers because of its strong adaptability, easy feeding, omnivorous, low oxygen tolerance, high catch rate, etc.

The hazards of scavenger fish are that scavengers have no natural predators and are easy to flood; Overrun scavengers devour the eggs of other fish, leading to the extinction of other fish species.

Scavenger fish belong to the family of bone catfish, also known as sucker mupai jujube fish, garbage fish, and angler fish, which can survive almost as long as there is water. They often cling to the walls of aquariums or the grass of the water and lick moss. There are no natural predators in China, and it is easy to reproduce in large numbers in rivers, which will threaten the survival of local fish and destroy the ecological chain.