The underwater crab “Dwarf Ghost” ( Potamocypoda alleni ) is an exceptionally small and fascinating freshwater crab, captivating primarily due to its semi-transparent to milky-white appearance . It owes its name “Dwarf Ghost” to its ghostly appearance and small size, which makes it an exciting and rare inhabitant of nano and invertebrate aquariums. Due to its peaceful nature and interesting lifestyle, it is ideally suited for both beginners and experienced invertebrate enthusiasts .

Characteristics

• Size: With a shell size of about 1.52 cm , this species remains exceptionally small and is therefore one of the true mini crabs of aquariums.

• Coloration: The dwarf ghost crab is usually translucent to milky white , giving it an almost ghostly appearance. Upon closer inspection, fine structures and organs can be seen a fascinating detail for enthusiasts of unusual species.

• Behavior: It is peaceful, calm, and sociable and can be kept with shrimp and small fish. However, due to its small size, it requires a quiet, stress-free environment with plenty of hiding places.

attitude

• Aquarium size: An aquarium of 20 liters or more is sufficient. Ideally, it should be well-structured with fine substrate, mosses, roots, caves, and small hiding places where the animals can retreat.

• Water parameters: The dwarf ghost crab thrives at temperatures between 22 and 27 C and a pH value of 6.57.5 . Good water quality and stable parameters are crucial for its health and well-being.

• Diet: It is omnivorous and feeds on biofilms, algae, leftover food, frozen food, and plant matter. It also readily accepts special crayfish or shrimp food.

Reproduction

Breeding Potamocypoda alleni has rarely been successful, but can occur in an aquarium under optimal conditions. Females carry their eggs under their abdomen until fully developed young crabs hatch. Stable water parameters and finely structured hiding places are important for successful breeding.

Special features

The dwarf ghost crab is one of the smallest and most fascinating freshwater crabs in aquariums. Its ghostly, almost transparent appearance and tranquil nature make it a real eye-catcher, especially in nano aquariums or aquascapes. It is ideally suited for keeping with shrimp and peaceful small fish, and its activity contributes to the biological balance of the aquarium.

With its unusual appearance, miniature size and peaceful nature, it is an ideal choice for lovers of rare and special invertebrates.