Mandarin Crab (Geosesarma sp.) Overview: A colorful Geosesarma species often called “Mandarin Crab,” featuring bright orange, red, or purple tones. Like other vampire-type crabs, it’s semi-terrestrial and thrives in humid paludariums. Care Level: Moderate Temperament: Semi-aggressive (territorial) Size: 2–2.5 inches Lifespan: 2–3 years Tank Requirements: Minimum 10 gallons for a small group Paludarium setup (70–80% land, 20–30% shallow water) High humidity (70–90%) Plenty of hiding spots (moss, leaf litter, caves, driftwood) Secure lid—they climb very well Water Parameters: Temperature: 72–82°F pH: 6.5–7.5 Shallow, clean freshwater only Diet: Omnivore—pellets, algae wafers, fruits, vegetables, insects, frozen foods Needs calcium for healthy molts Tank Mates: Best kept species-only May attack or eat tank mates Notes: Mostly land-dwelling—deep water can be dangerous Nocturnal and shy Will hide during molting—provide safe cover Assortment includes a mix of colors and patterns; Exact colors and markings will vary; Stock photo used; fish received may differ.