1. Prepare an aquarium suitable for the survival of crabs, make sure the area is large enough, the water depth is moderate, and the bottom is lined with substrate suitable for the crabs to _rest_.

2. Water quality management is very important, use crab-friendly water treatment to regulate the water quality, maintain proper water temperature, acid-base balance and proper salinity.

3. Provide sufficient food. Crabs are omnivores, you can provide mixed fish feed, vegetables, fruits and other food, you can also add calcium additives to supplement nutrition.

4. Maintain proper humidity and temperature and keep the aquarium moderately moist. A humidifier or regular water spray can be used to maintain humidity, while the temperature can be adjusted according to the habits of the crabs.

5. Provide suitable hiding places and crawling shelves, crabs like to move around in burrows or branches, providing these environments can make the crabs feel safe.

6. Clean the aquarium regularly to remove food and waste residues and keep the water fresh.

7.