* Creating Waves: Crabs and their eggs are accustomed to sea waves in their regular habitat. They are thought to inhabit this habitat more frequently. Purchase a wave machine online or at your local pet store to create waves in the aquarium or lake.

* Setting the Right Water Temperature: You’ll need to replicate the water temperatures found in tropical regions of the world, which range from 70 to 80 degrees. Your crabs run the risk of becoming more ill and failing to mate if the temperature falls outside of the range of 70 to 80 degrees.

* Laying out the Moonlight: Keep in mind that loner crabs are animals that live at night and thrive at night. To create the illusion of nighttime and twilight, you will need to invest in a twilight bulb. It is common for these crabs to mate at night.