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Banded Snapping Shrimp

Alpheus armillatus

An Atlantic snapping shrimp, famous for light and dark transverse bands across its body.

Family
Alpheidae
Origin
Oceano Atlantico occidentale: da Bermuda e Florida fino al Brasile meridionale.
Origin
Tropical oceans and reefsExtra-Amazon South AmericaNorth America
Tank use
Used in 0 tanks

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Species challenges
Water Temperature

22 °C - 26 °C

pH Value

8.1 - 8.4

Water type

Marine

Ecological role

Spazzino

Copper

Alta

Species description

Geographical Origin and Habitat: Western Atlantic Ocean: Bermuda and Florida to southern Brazil.

Taxonomy: Belongs to the Alpheidae family. It exhibits a morphology typical of reef-dwelling scavenger invertebrates, growing to a size of 4.5 cm.

Social Behavior: Very peaceful and secretive. It leads a benthic lifestyle, spending much of its time sheltered within crevices or sandy burrows.

Coloration and Sexual Dimorphism: The coloration consists of cryptic or distinct markings helpful for camouflage. Sexual dimorphism is not externally prominent.

Care, breeding and tankmates

Tank Setup: Requires a reef aquarium of at least 80.0 liters with stable rockwork. Provide shaded areas and caves to shelter during molting.

Diet and Feeding: Omnivore. Acts as a scavenger, eating leftover foods, micro-crustaceans, organic debris, and sinking pellets.

Water Quality: Reef parameters with pH 8.1-8.4, gravity 1.023-1.025, and low nitrates are critical.

Compatibility and Tankmates: Peaceful. Reef-safe. Do not house with large, aggressive fish species that might consider it prey.

Aquarium Breeding: Simultaneous hermaphrodite. Breeding is complex due to a prolonged planktonic larval phase which rarely survives.

Risks and Diseases: High sensitivity to copper-based medications. Risk of osmotic shock; requires slow drip acclimation.

Invertebrate profile

Type
Gambero marino
Diet
Onnivoro. Consuma avanzi di cibo, detrito organico fine e mangime secco affondante.
Ecological role
Spazzino
Minimum group
1
Adult size
4.5 cm
GH
n/a
KH
n/a
TDS
n/a
Copper
Alta
Shock sensitivity
Alta
Calcium and minerals
Gli elementi minerali disciolti devono essere mantenuti entro standard di barriera stabili.
Molting
Esegue la muta all'interno della sua complessa rete di tane sabbiose.
Reproduction
Oviparo. Le larve subiscono svariati stadi planctonici difficili da gestire in vasca.
Compatibility & tankmates
Reef-safe. Evitare coinquilini aggressivi di fondo come granchi o pesci predatori.

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

Other recommended species with similar care requirements and water parameters.

Last updated: 06/13/2026