Answer: A 10-gallon tank is the minimum for small groups, but larger is always better. Hermit crabs need space to explore, burrow, and grow.
Answer: At least 6 inches of a mix of play sand and coconut fiber, so they can safely burrow and molt.
Answer: Temperature: 75-85°F | Humidity: 70-80%
Use a digital thermometer and hygrometer to monitor their environment.
Answer: No. Tap water contains chlorine and harmful chemicals. Always use a water dechlorinator for both fresh and saltwater.
Answer: Yes! They need both freshwater and saltwater pools to stay hydrated and regulate their shells. Use marine aquarium salt (not table salt).
Answer: It depends on their size. Smaller crabs molt every few months, while larger ones may only molt once a year. Molting can take weeks or even months.
Answer: You can handle them gently, but limit handling. Hermit crabs get stressed easily and should be allowed to explore naturally.
Answer: It’s likely molting. Never dig up a buried crab—it needs to shed its exoskeleton undisturbed.
Answer: Always provide multiple natural, unpainted shells in different sizes. A crab struggling to fit in its shell or frequently switching shells may need more options.
Answer: No, hermit crabs are social animals and should always be kept in groups of at least two or more.
Answer: A mix of fresh fruits, vegetables, proteins (like dried shrimp or mealworms), and calcium (cuttlebone or eggshells). Avoid processed foods and table salt.
Answer: With proper care, hermit crabs can live 10-30 years! Most die young due to incorrect care.
Got more questions? Feel free to reach out at Hermit Crab Owners the Most Popular Hermit Crab Facebook Group.