Blue Crayfish care guide
Blue Crayfish (Procambarus alleni) — minimum tank 80 L, temperature 18-26 °C, pH 6.5-8.
Overview
The Blue Crayfish (Procambarus alleni), also called the Electric Blue or Florida Crayfish, is a medium-large North American crayfish whose cobalt-blue colour form has become a standout in the ornamental trade. Wild colour varies from brown through reddish to blue.
Taxonomy
- Family: Cambaridae
- Genus: Procambarus
- Scientific name: Procambarus alleni
- Common synonyms: Florida Crayfish, Electric Blue Lobster
Habitat
Native to peninsular Florida and offshore islands of the southeastern United States, where it inhabits ditches, ponds, marshes and slow streams over soft substrate. It tolerates a wide range of warm freshwater conditions and digs burrows for shelter.
Tank requirements
- Minimum tank volume: 80 L (21.1 US gal)
- Adult size: 10-15 cm
- Temperature: 18-26 °C (64-79 °F)
- pH: 6.5-8
- GH: 6-20 °dGH
- Water flow: moderate
- Lifespan: 3-5 years
Diet
An opportunistic omnivore feeding on detritus, plant material, small invertebrates, carrion and occasional small fish. In aquaria it accepts sinking crayfish pellets, frozen or thawed bloodworm and brine shrimp, blanched vegetables and occasional protein items.
Compatibility
Aggressive and predatory; will catch and consume any tank mate it can grab, including slow fish, shrimp and other invertebrates. Best housed singly per tank or as a separated pair in a divided enclosure. Combinations with fast mid- and upper-water fish (Danios, Rainbowfish) sometimes succeed in very large tanks.
Breeding
A direct freshwater breeder. Females carry eggs and then miniature crayfish under the abdomen for several weeks; juveniles must be separated immediately, otherwise the adults will cannibalise them. Captive reproduction is common.
Conservation status
IUCN Red List: Least Concern. The species has a stable native range; release of any non-native crayfish into wild waterways is prohibited in many regions due to invasion and disease risks.