The Purple Vampire Crab, also known as the Bodoensis Crab, is a unique and fascinating species of freshwater crab that is native to Borneo. These crabs are known for their striking purple coloration, which is a result of their diet and habitat.

One of the most interesting things about the Purple Vampire Crab is their diet. These crabs are opportunistic feeders and will consume a wide variety of foods, including plant matter, insects, and even small fish. However, they are particularly fond of consuming a type of freshwater snail that is also native to Borneo. The snail's shells are rich in calcium, which the crabs need to grow and maintain their shells. The purple coloration of the crab's shell is a result of their high snail diet which contains a high concentration of pigments called carotenoids.

The Purple Vampire Crab can be found in a variety of freshwater habitats, including rivers, streams, and swamps. They are most commonly found in areas with slow-moving water and plenty of vegetation. These crabs are also known to burrow into the mud or sand in order to create a hiding spot.

Another interesting thing about the Purple Vampire Crab is their reproductive habits. They reproduce through a process called "broadcast spawning" which means that the female releases her eggs into the water, and the male releases his sperm at the same time. The eggs and sperm then fertilize in the water and develop into small tadpole-like creatures called zoea. The zoea grow and develop into small crabs, and will eventually reach maturity.

In terms of keeping these crabs as pets, they are relatively easy to care for and make a great addition to any freshwater tank. They require a diet of fresh fruits, vegetables, and meat, as well as a source of calcium. They also require a tank with plenty of hiding spots and a deep substrate for burrowing.

Overall, the Purple Vampire Crab is a unique and fascinating species that is sure to captivate anyone who encounters them. With their striking purple coloration and interesting diet and habitat, they are sure to be a conversation starter in any tank.