Green crab
Carcinus maenas
Family : Carcinidae
InvertebrateBrackishcrab
Common coastal crab of estuaries, green mottled body, widespread invasive species.
Popularity
Brackish invertebrate
mangroves, estuaries
Availability
Specialty onlyShop availability
IUCN Status
LC
Least Concern
Description
Crab with broad flattened carapace, olive-green with darker spots. Lives in estuaries and rocky coasts, tolerating wide salinity swings.
Habitat
Region :
Rocky and sandy estuaries, intertidal zones, tolerates brackish water.
Distribution :
Recommended parameters
Temperature10–24 °C
pH7.5–8.5
GH10–22 °dGH
KH8–14 °dKH
Salinity1.005–1.025 ‰
Care
Difficulty
3/5
Diet
Omnivore
Min. tank
100 L
Min. group
1
Adult size
9 cm
Lifespan
5 years
Temperament
Aggressive
Propagation
Larves planctoniques
Care notes
At least 100 L tank with hides. Brackish (salinity 1.005-1.025). Temperature 10-24°C, pH 7.5-8.5. Omnivore (detritus, shellfish, pellets). Territorial: one per tank or separate hides.
Similar species
Espèces proches, même habitat ou même maintenance
