Crabs are escape artists, predators, and opportunists. Some are fully aquatic, some need land. This section covers how to keep them without losing your shrimp or finding a dried crab behind the sofa.
Camposcia retusa, commonly known as the Decorator crab, is a colorful and highly sought-after crab in the marine aquarium hobby owing to its dazzling appearance, and ease of care. Nonetheless, despite considerable interest, scientific knowledge about these crabs remains limited. Very little is known about this
Aquarists are always on the lookout for unique and rare species to add to their collections, and there are few things more exciting than discovering a species that is both rare and suitable for captivity. Such is the case with the Ghost dwarf crab (Potamocypoda
How to tell the difference between a male and a female crab? This question is especially important for biologists and pet owners, the need to know their crab’s gender is critical for breeding and understanding many behaviors. Luckily, determining a crab’s gender is not very
The Tanganyika сrabs (Platythelphusa Sp.) are one the rarest crabs in the aquarium hobby. If you by chance buy one you will be surprised to find out how little is known about them. The Tanganyika сrabs require a properly set up tank. Therefore, you will
The Chinese mitten crabs (Eriocheir sinensis) are aggressive, burrowing crustaceans. Although these crabs can be interesting augmentations to certain freshwater aquariums, generally, they have been exploited extensively as a food resource since the 1990s. The Chinese mitten crabs are large freshwater crabs that can be found in
Being a recent addition to the aquarium hobby, crabs are quickly gaining popularity every year. These astonishing crustaceans have a lot of character, personality, and can be great pets, even for beginners. Due to every growing need, these FAQs cover the most commonly asked questions
Updated June 2026 Most pet crabs live between 3 to 10 years. Small species like fiddler crabs often live 2 to 5 years, while larger pet species like hermit crabs can reach 10 to 15+ years with proper care. In the wild, larger species like