Because every step it takes will make the old man cough. So it's called "old fish". ? ? ? ? Fish is a kind of deep-sea fish, belonging to a modest family.

What's the scientific name? ? ? ? Fish, commonly known as toad fish, old fish, oral fish, sea frog, ugly girl, sea ghost fish and so on. But it has a more appropriate and pleasant name, called anglerfish.

? ? ? ? The fish has a flat front half and a small tail, with a body length of more than 50 cm. The back is purple-brown, the abdomen is pale, the head is big, the mouth is wide and the teeth are sharp. As a worldwide fish, it is distributed in the Atlantic Ocean, the Pacific Ocean and the Indian Ocean.

It mainly lives in the submarine waters with the water depth of 50 meters to 100 meters in the temperate ocean. Often lurking, using the flap of the first spine of dorsal fin as bait to trap those phototactic fish and shrimp.

What are the causes of Laotouyu?

1. Malnutrition: Laotou fish is most likely caused by malnutrition, mainly due to insufficient feeding or unreasonable feed mix. Therefore, in the daily feeding process, it is necessary to feed the fish every day, generally 1-2 times, and the fish can grow healthily only when they are fed to seven or eight minutes full each time.

2, lack of space: fish tanks sometimes limit the growth of fish, causing it to grow into an old fish. Generally, according to the type of fish, choose a fish tank of appropriate size.