Discover the fascinating symbiotic relationship between Dardanus sp. Hermit Crabs and the anemone Calliactis polypus. These crabs, including D. pedunculatus, D. tinctor, and D. deformis, form a remarkable partnership where the anemone attaches to their shells, providing camouflage and protection. In return, the crabs assist in dispersing the anemones as they move about the reef. With their striking behavior and captivating interaction, these Hermit Crabs make for an engaging addition to your aquarium.To ensure the optimal care for your Dardanus sp. Hermit Crab, it's essential to provide a suitable environment. Create a habitat with ample stable rock work and dim lighting, replicating their natural habitat. However, it's important to note that these crabs are aggressive and not suitable for a reef or peaceful fish aquarium. As they can grow u to 4 inches, a minimum tank size for them would be 30 gallons. Their diet consists of a variety of foods, including fish, snails, worms, detritus, and some algae. As they grow, be sure to offer multiple sizes of gastropod shells for them to transition into. Additionally, if there's a shortage of algae, supplement their diet with dried seaweed and meaty items.