Dwarf and Specialty Crayfish (Cambarellus and Cherax species) is a intermediate-level freshwater invertebrate that needs at least 10 gallons and 65-78°F. Crayfish are escape artists and will eat small fish and shrimp. Dwarf Mexican crayfish stay smaller and are gentler.

Care facts at a glance

Scientific nameCambarellus and Cherax species
FamilyCambaridae
OriginAmericas, Australia
Adult size1.5-6 in
Minimum tank10 gallons
Temperature65-78°F
pH7.0-8.0
TemperamentTerritorial, will eat tankmates
Social behaviorSolitary or species group
Swim levelBottom
DifficultyIntermediate
DietOmnivore: sinking pellets, vegetables, frozen foods
Typical lifespan2-4 years

Quick tips

  • Use a tight lid.
  • Provide hiding spots.
  • Do not keep with shrimp or small fish.

San Diego water

Naturally suited to San Diego's hard, alkaline tap water once it is dechlorinated (the city uses chloramine, so use a conditioner that handles it). Learn the numbers in our San Diego tap water guide.

Before you buy

Make sure your tank is cycled (how to cycle a tank), check your numbers with the water testing guide, and use the compatibility guide to check tankmates. These are general ranges; individual fish and local water vary.

Find it at Pet Zone

Pet Zone Tropical Fish is a San Diego aquarium store with two locations. Stock changes daily, so call ahead if you are after a specific species or plant. Shop online at petzonesd.com.

Pet Zone Convoy

4160 Convoy St, San Diego, CA 92111
(858) 987-0309
Open daily, 10am-6pm

Aquascaping, planted tanks

Pet Zone Mid-City

4266 University Ave, San Diego, CA 92105
(619) 283-1812
Closed Monday; Tue-Fri 10:30am-6pm, Sat 11am-6pm, Sun 11am-4pm

Monster fish, koi