Cajun dwarf crayfish

Photo: Dan Johnson, CC BY 4.0, via Wikimedia Commons

Crayfish · Cambaridae

Cajun dwarf crayfish

Cambarellus puer

slightly aggressivecolony

3 cm

Adult size

20 L

Minimum volume

2

Minimum group

2 years

Lifespan

Size: body length.

Water parameters

Understand these values
pH6.8 – 7.2
49

Hardness (GH): not given by the sources

Carbonate hardness (KH): not given by the sources

Temperature18 – 30°C
0°C32°C
Genus
Cambarellus
Diet
carnivore
Social life
colony
Activity
diurnal
Adult habitat
fresh water
Breeding
in fresh water

In the wild

Overview

Brown and inconspicuous, this dwarf crayfish blends into muddy bottoms and plant debris. It frequents areas where plants and piled-up leaves provide both food and shelter.

Scientific name
Cambarellus puer Hobbs, 1945
Classification
Decapoda › Cambaridae
IUCN Red List
Least concern (LC)

Natural habitat

Southern United States: Mississippi basin and the bayous of Texas (Buffalo Bayou)

Observations (GBIF) and localities Native countries Rivers and lakes

It lives in slow or still water choked with aquatic and marsh plants, branches and decaying matter, over humus and mud. It keeps close to leaf piles and plants, where it finds food and cover.

Behaviour

It lives in colonies on the bottom, is active by day and rather calm. Territorial, it does not tolerate intruders of similar habits, but ignores other animals. Being small, it hides when larger neighbours are around.

In the aquarium

Care and setup

Spread hiding places across the floor rather than gathering all shelters in one spot. Territorial disputes remain possible; freshly moulted individuals must be able to retreat.

Feeding

The source describes a carnivorous diet. Give portions on the bottom suited to its small size.

Breeding

It breeds in fresh water, and the young hatch fully formed. Dense vegetation gives them more places to hide.

Sources:Fishipedia GBIF · Base map: Natural Earth

Cajun dwarf crayfish · Aquarius