The Vampire Crab (Geosesarma dennerle) is a semi-terrestrial ornamental crab species known for its vivid purple and yellow coloration, small size, and unique care needs.** π¦ Species Overview Scientific Name: Geosesarma dennerle Common Name: Vampire Crab Size: Carapace ~1 inch (2.5 cm), leg span ~2 inches (5 cm) Lifespan: Around 2 years in captivity Origin: Native to islands in the Indian Ocean, including Java Behavior: Semi-terrestrial; requires both land and water areas in its enclosure π‘ Care & Husbandry Tank Setup: Paludarium-style enclosure with ~50% land and 50% shallow water. Water Conditions: 70β82Β°F, pH 7.0β8.0. Humidity: High humidity is essential; misting helps maintain proper levels. Tank Mates: Best kept with other Vampire Crabs or peaceful invertebrates; avoid aggressive fish.