How to tell the difference between big eyed thief, grass shrimp, and black shell shrimp

Bigeye thief shrimp and black-shelled shrimp grass shrimp can be hybridized.

Shrimp are fertilized in vivo, unlike ordinary fish. Whether it's grass shrimp, monodon shrimp, white shrimp, freshwater long-arm shrimp, mountain shrimp, black shell shrimp, rose shrimp, crystal shrimp, flame shrimp, crayfish, lobster.

Sakura shrimp are all in vitro fertilization, and no type of in vitro fertilization shrimp has been found. Shrimp ovaries are shelled after maturation, and mate with male shrimp in about 3 to 6 hours. After mating, the fertilized eggs will be expelled from the abdominal genital orifice within 24 hours, and will gather in the abdomen to swim and hold the eggs, and it will take about 15 to 25 days to hatch the larvae of shrimp seedlings.

The black shell is dark in color and has no long arms, the big eyes are white and transparent, with long arms and prominent eyes, and the size is generally larger than the black shell.

The big-eyed thief is aggressive, and the big-eyed thief will hurt the grass and will kill the fish when he grows up, and only eat ** and save half of the head.

The most obvious distinguishing feature:

1. The angle between the eyes of the black shell shrimp is about 120 degrees to 150 degrees, while the big-eyed thief is directly 180 degrees long.

2. The back of the black-shelled shrimp is smooth, and the bulge on the back of the big-eyed thief is more obvious.

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Black-shell shrimp can be caught in the wild, but sometimes big-eyed thieves can be caught, and if they are not clearly distinguished, they will cause the death of some fish and bring some losses.

The big-eyed thief is the common name of the river shrimp, and the most obvious feature is the long tongs, which have a certain aggression towards the fish shirt, and are not as gentle as the black shell shrimp.

Bigeye thief shrimp will eat black-shelled shrimp. They have a large pair of shrimp claws and are very aggressive. When the black shell shrimp is in the shelling stage, they can easily prey on the black shell shrimp.

In addition, if they have not been fed for a long time, they will also actively prey on black-shell shrimp when they are in a relatively hungry state. In addition to black-shell shrimp, they can also eat small tropical fish, small shrimp and snails. <

Bigeye thief shrimp will eat black-shelled shrimp. The bigeye thief shrimp has a pair of large shrimp claws and is very aggressive, while the black-shelled shrimp has little defense, so it is possible to be preyed on by the bigeye thief shrimp. If these two types of shrimp are kept in the same tank, and the bigeye thief shrimp is very hungry if they are not fed for a long time, or when the black-shelled shrimp is in the shelling period and the defense ability is very weak, the big-eyed thief shrimp is likely to prey on the black-shelled shrimp.

The prawn claws of the bigeye thief shrimp give it a strong aggressiveness. In addition to eating some small shrimp, it can also eat small fish. Especially newborn small fish, they can easily prey on them.

For some smaller fish, even adult fish can be hunted. Therefore, it is not recommended to breed them in the same tank as small fish when they are actually farmed.

The big-eyed thief shrimp has a very mixed diet, and even aquatic plants can be eaten. However, when there is plenty of algae or other food in the tank, they generally do not eat aquatic plants. They usually only eat young shoots, but sometimes they gouge out the roots of aquatic plants.

Therefore, they should not be kept in tanks with shallow-rooted aquatic weeds, otherwise the aquatic weeds will not grow properly and will soon be destroyed by them.

Judging from your **, this is a Chinese small long-arm shrimp, not a big-eyed thief. The term "big-eyed thief" usually refers to the giant river prawn.

The body is relatively transparent, and there are 7 brown stripes on the shrimp body, with the third abdominal node being the most intense, commonly known as the flower waist. It is a small shrimp with a body length of 25 to 50 mm and a weight of grams. The eyes are larger than those of the general river prawn species, and the angle between the eye stalk and the body is also larger, but it is not as good as the beautiful white shrimp.

The shrimp has a pair of distinctive white tentacles that stand up and twitch from time to time.

This is a Chinese little long arm, he has a different shell from the big-eyed thief, and his forelimbs are not the same, so it is easy to distinguish.

It should be a big-eyed thief shrimp. . .