Candy Cane Pistol Shrimp

Candy Cane Pistol Shrimp are fascinating additions to saltwater aquariums due to their bright red and white banding, unique clicking behavior, and ability to form a symbiotic relationship with certain shrimp gobies. Also known as Red Banded Pistol Shrimp or Randall’s Pistol Shrimp, Alpheus randalli are small, reef safe burrowing shrimp that spend much of their time constructing and maintaining tunnels beneath rockwork. Their oversized claw can produce an audible “snap,” which is used for defense, communication, and stunning small prey. Candy Cane Pistol Shrimp are peaceful toward most tankmates, but they should be kept with care in aquariums containing very small ornamental shrimp or delicate bottom-dwelling invertebrates.

Introduction to Candy Cane Pistol Shrimp (Goby-Pairing Burrow Builder & Reef Aquarium Favorite)

Candy Cane Pistol Shrimp (Alpheus randalli) are highly sought-after pistol shrimp known for their bold red and white striped pattern and their natural partnership with shrimp gobies. In the aquarium, they will often create a burrow system under rockwork and may share that burrow with compatible gobies such as Yasha Gobies, Hi Fin Red Banded Gobies, or Randall’s Prawn Gobies. The shrimp maintains the burrow while the goby acts as a lookout, creating one of the most interesting natural behaviors available in a reef aquarium.

Care Requirements

Care Level: Easy – Hardy when kept in a stable, established aquarium
Minimum Tank Size: 20+ gallons
Aquarium Setup: Requires a sand bed, secure rockwork, and caves or crevices for burrowing

Candy Cane Pistol Shrimp do best in mature aquariums with stable water quality and a sand bed deep enough for burrow construction. Rockwork should be placed securely on the bottom of the aquarium or otherwise stabilized, as the shrimp may dig underneath rocks while building tunnels. They are usually secretive at first and may spend most of their time near the entrance of their burrow, especially when paired with a goby.

Diet & Nutrition

Candy Cane Pistol Shrimp are carnivorous scavengers that feed on meaty foods and leftover foods that reach the substrate.

Diet: Carnivorous – Prefers small meaty foods and sinking prepared foods
Recommended Foods:
Frozen mysis shrimp
Brine shrimp
Finely chopped seafood
Sinking carnivore pellets
Small meaty leftovers from regular fish feedings

When paired with a goby, they may also share food within the burrow. Target feeding near the burrow entrance can help ensure the shrimp receives enough food, especially in tanks with fast or aggressive fish that consume food before it reaches the bottom.

Lifespan & Growth Rate

Lifespan: 2-4+ years with proper care
Growth Rate: Moderate – Can grow up to about 2 inches

Candy Cane Pistol Shrimp remain a manageable size for most reef aquariums. Like other shrimp, they must molt in order to grow, so stable salinity, alkalinity, iodine, and trace element levels are important for long-term health.

Temperament & Compatibility

Temperament: Peaceful – Generally safe with fish, corals, and most invertebrates
Reef Safe? Yes – Does not harm corals, but may rearrange sand near its burrow

Candy Cane Pistol Shrimp are considered reef safe and are excellent candidates for peaceful reef aquariums. They are best kept with compatible shrimp gobies, but they can also be kept alone. Avoid housing them with aggressive predators such as triggers, puffers, hawkfish, large wrasses, large crabs, or other animals that may harass or eat shrimp.

Common Challenges & Considerations

Burrowing Behavior: Candy Cane Pistol Shrimp will dig under rocks and may move sand while building tunnels.
Rockwork Must Be Secure: Unstable rocks can shift if the shrimp excavates underneath them.
Clicking Sounds: Their snapping claw can produce loud clicking noises, which are normal and not usually a cause for concern.
May Be Reclusive: They may spend most of their time near their burrow, especially when first introduced.
Potential Risk to Tiny Shrimp: While usually peaceful, very small ornamental shrimp or delicate invertebrates may be at risk in close quarters.
Sensitive to Copper: Like all marine shrimp, they should never be exposed to copper-based medications.

To prevent issues, provide a sand bed, stable rockwork, peaceful tankmates, and occasional target feeding near the burrow entrance.

Water Conditions

Temperature: 72-78°F
dKH Alkalinity: 8-12
pH: 8.1-8.4
Specific Gravity: 1.023-1.025