Electric Blue Hermit Crab (Calcinus elegans)

Add vibrant color and hardworking cleanup power to your reef aquarium with the Electric Blue Hermit Crab (Calcinus elegans). Known for its brilliant electric blue legs, dark banding, and bright orange antennae, this striking hermit crab is one of the most eye-catching members of any cleanup crew.

Beyond its stunning appearance, the Electric Blue Hermit Crab is an active scavenger that spends the day grazing on nuisance algae, detritus, leftover food, and organic waste. Constantly exploring your aquarium, it helps clean live rock, substrate, and hard-to-reach crevices while adding personality and movement to your reef.

Perfect for reef aquariums and fish-only marine systems alike, this beautiful hermit crab combines function with outstanding visual appeal.

Features

• Brilliant electric blue legs with vibrant orange antennae

• Excellent consumer of nuisance algae and detritus

• Active scavenger that helps maintain a cleaner aquarium

• Safe with corals and most reef inhabitants

• Constantly active and entertaining to observe

• Great addition to cleanup crews

• Hardy and beginner friendly

Care Information

Scientific Name: Calcinus elegans
Common Name: Electric Blue Hermit Crab
Temperament: Peaceful
Reef Safe: Yes
Difficulty: Easy
Diet: Omnivore (Film Algae, Hair Algae, Detritus, Uneaten Food, Meaty Foods)
Minimum Aquarium Size: 20 Gallons

Water Parameters

• Temperature: 72–78°F

• Salinity: 1.023–1.026

• pH: 8.1–8.4

Compatibility

Electric Blue Hermit Crabs are compatible with most reef-safe fish, corals, shrimp, snails, and other invertebrates. They spend their day grazing on algae and scavenging leftover food while helping maintain a healthy reef environment.

Like all hermit crabs, they require appropriately sized empty shells as they grow. Providing a selection of spare shells helps reduce competition and encourages natural shell-swapping behavior.

Avoid housing with large Triggerfish, Puffers, Hawkfish, or other predators that may prey on small crustaceans.

Why Shop with Infinity and Beyond Aquatics?

At Infinity and Beyond Aquatics, we understand that purchasing live animals online requires trust. Every animal is carefully inspected before shipment and professionally packed to help ensure it arrives healthy and ready to thrive.

• Carefully inspected before shipment

• Professionally packed in insulated cooler boxes

• Heat or cold packs included when weather requires

• Overnight shipping to minimize transit stress

• Responsive customer support from fellow hobbyists

• Healthy livestock backed by exceptional customer service

Whether you're building your first cleanup crew or adding a splash of color to an established reef, we're committed to providing healthy livestock you can trust.

Live Animal Shipping Information

All live fish, corals, and invertebrates are shipped FedEx Priority Overnight in insulated cooler boxes with appropriate heat or cold packs as needed.

• Ships Monday through Thursday only

• Orders are shipped as quickly as possible during our live animal shipping days

• Live Animal Shipping is $39.99 on orders containing live fish, corals, or invertebrates

• FREE Overnight Shipping on qualifying live animal orders of $300 or more

• We carefully monitor weather conditions and may delay shipment if temperatures are unsafe to help ensure the safe arrival of your livestock

• Tracking information is emailed as soon as your order ships

Thank you for trusting Infinity and Beyond Aquatics with your next reef addition!