CATDOLL : CATDOLL: Crab Farming Water Plants

1. Crab farming water plants

The main species of water plants for crab and crayfish farming include Hydrilla verticillata, Vallisneria, Elodea, etc. Hydrilla verticillata and Elodea are mainly transplanted and cuttage, while Vallisneria is planted by sowing. These are the water plants that crabs and crayfish like. Elodea is planted in crab ponds. Elodea.com in Sihong County, Jiangsu Province specializes in selling Elodea, which can purify water quality and prevent eutrophication of water bodies. Elodea can not only release a large amount of oxygen during photosynthesis, but also absorb a large amount of harmful ammonia nitrogen, carbon dioxide, and residual bait dissolved matter and certain organic decomposition products continuously produced in the water. These effects are of great significance to stabilizing the pH value, keeping the water quality neutral and alkaline, increasing the transparency of the water body, promoting molting, improving feed utilization, and improving quality.

2. Where are the water plants that crabs eat?

You can buy it at aquariums, aquatic product feed stores, or Taobao without leaving your home.

3. Can small crabs be placed in a water plant tank?

Can.

Small fish and shrimp occupy a large proportion in the food chain of crabs. If the fish fry are for ornamental purposes, it is recommended not to raise them together.

Crab farming needs to be more ecological, with sand, water plants, and anti-escape facilities. You can find relevant books or tutorials on crab farming technology on the Internet.

Living habits:

1. Foraging: Crabs spend most of their time looking for food. They are generally not picky eaters and will eat anything they can get their hands on. Small fish and shrimp are their favorites, but some crabs eat seaweed and even dead animals or plants.

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2. Competition: Crabs can eat fish, and fish will eat small crabs. And crabs cannot live in an environment that is too cold.

3. Reproduction: Female crabs will lay a lot of eggs, the number can reach millions or more. After these eggs hatch in the abdomen of the female crab, the larvae can separate from the mother and float around with the coastal tide. After several molting, they grow into big-eyed larvae, which molt several times and grow into young crabs. The appearance of young crabs is almost the same as that of adult crabs. After several more molting, they become crabs. Most marine crabs are discharged directly into the ocean after the eggs mature without hatching.

4. Breeding method: Adult crabs prefer clean water, transparent water environment, dense aquatic plants, rich bait, and the most suitable environment for river crabs to grow: (water tank breeding)

There should be sufficient water source, convenient water inlet and outlet, good water quality and good pollution-free. Choose sandy or sub-sandy soil with good air permeability, which is conducive to the growth and reproduction of aquatic plants. Several mounds (rockery) slightly above the water surface can be built, namely crab islands. Aquatic plants can be transplanted on the islands. River crabs can easily dig holes, and it is best if the rockery has many artificial caves.

4. Why do crabs cut water plants into pieces?

The pond crabs at the Erli River Crab Breeding Base eat some of the aquatic plants and at the same time help control their growth rate to avoid over-breeding and rotting.

5. Can crabs survive without water plants?

As long as there is water, but not too much. In addition, give some soil and small stones, it will survive. Usually feed some rice or small fish and shrimps. Vegetable leaves are also OK, but be careful that the leaves may have been sprayed with pesticides.