Swamp dwarf crayfish

Cambarellus puer

Also known as Striped dwarf crayfish, Mini lobster

FreshwaterCrayfish

Care at a glance

Temperature
64–79°F (18–26°C)
pH
6.5–8.0
Adult size
1.2 in (3 cm)
Minimum tank
5 gal (20 L)
Temperament
Mostly peaceful
Social behavior
Solitary
Tankmates
Tankmates with caution
Swim level
Bottom
Difficulty
Easy
Breeding
Easy
Rarity
Common
Origin
Mississippi valley swamps, southern United States
Family
Cambaridae

Overview

A striped nano crayfish that holds its own in a planted tank beside shrimp and small fish without hunting them. Keep a colony in 20 liters with leaf litter, plants and small caves. It needs no heater in a normal room and breeds without help. Feed sinking pellets, blanched vegetables and occasional frozen food. Keep it away from slow, long-finned fish, which are the one thing it will pester.

In the wild

Cambarellus puer lives in the swamps and backwaters of the Mississippi valley in the southern United States, in warm, still, heavily vegetated water. Keep it at 18 to 26 degrees Celsius and pH 6.5 to 8.0, with cover and enough hardness to build a shell.

Good to know

Cambarellus puer reaches about 3 centimeters and carries dark lateral striping along the body. Females carry eggs and then miniature crayfish under the abdomen. Molting is when it grows and when it is most vulnerable, so a crayfish that has vanished for a few days is usually hiding under cover with a soft shell.

Did you know

Puer means boy in Latin, a describer's joke about a crayfish that never grows up.

Common questions

What size tank does a Swamp dwarf crayfish need?

A Swamp dwarf crayfish needs at least 5 gal (20 L). It spends most of its time in the bottom.

What temperature and pH do Swamp dwarf crayfish need?

Swamp dwarf crayfish are comfortable at 64–79°F (18–26°C) with a pH of 6.5–8.0.

How big do Swamp dwarf crayfish get?

An adult Swamp dwarf crayfish reaches about 1.2 in (3 cm).

Where to buy

Some links may not be the exact species or variety.

…or ask your local fish store.

Appears in

Freshwater clean-up crew · Freshwater inverts

Keeping Swamp dwarf crayfish?

Track water tests, reminders and stocking fit.

Sign in or Track your tanks →

Planning tankmates

See how Swamp dwarf crayfish fits a stocking plan. Open the stocking calculator

Add to your site

Show this species on your own site: a shortcode for WordPress, or an HTML embed for anywhere else.

WordPress shortcodeAbout the plugin
HTML embedAbout the embed

Related species