Blue Knuckle Hermit Crab (Calcinus elegans)
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The Blue Knuckle Hermit Crab has neon blue legs that make them a fan favorite. They will scavenge fish waste, algae, cyanobacteria, and detritus that have been deposited on live rock and substrate. Not only do they eat the aquarium's waste but they will also turn the sand, which aerates it. These little guys can find their way into even the smallest of spaces. Like all hermit crabs, they make their home in empty snail shells, be sure to have an array of empty shells available for them to move into when they grow. They will also take housing matters into their own pincers by occasionally eating a snail and taking that shell over; smaller snails are especially at risk. The Blue Knuckle hermit crabs are very hardy but are sensitive to copper.
- - Beginner hobbyist
- - For continued health, supplement with marine algae and small marine meaty foods
- - Drip acclimation is recommended
- - Prefers higher salinity
- - Multiple can be added to aquarium
- - Cannot tolerate copper medications
- - Reef safe
Petco Marine Inverts
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Petco takes great care to ensure that the Live Fish, Invertebrates & Plants you order arrives safely and in healthy condition. All Aquatic Life are guaranteed to stay alive for 7 days from the day they arrive at your home or we will gladly refund your money. Returns or refunds cannot be offered on Live Fish, Invertebrates & Plants that you decide you do not want. Please ensure the items you order are what you want before finalizing the order. If you experience a loss of your marine fish, freshwater fish, invertebrates, or live plants within 7 days of delivery please contact Customer Relations at 877-738-6742.
ACCLIMATION: Avoid exposing new aquatic life to bright lights after opening the box. Turn off aquarium lights prior to floating aquatic life. Allow the sealed bag with your new fish to float in your aquarium for at least 15 minutes (but no longer than one hour) to ensure the water in the bag matches the temperature in your aquarium. A bacteria booster addition can assist with the addition of new aquatic life. Petco offers free water testing in store to determine if your water is safe for the addition of new aquatic life. DIET: A well-balanced diet consists of a variety of flakes, pellets, freeze-dried and frozen foods, depending on the species. FEEDING: Feed sparingly and no more than fish can eat in 1-2 minutes. Overfeeding can quickly foul the water, especially in smaller aquariums.
If we need to contact you for any reason about your order, shipping of your package may be affected. Once your order is placed, you will receive a confirmation email with your order summary. Orders are subject to verification of payment information by phone or email.
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