AquaStocker

Dwarf Mexican Crayfish Care Guide

Cambarellus patzcuarensis · Easy care · 5 gallon minimum

Updated June 2026
By the AquaStocker team · How we source our data
Dwarf Mexican Crayfish (Cambarellus patzcuarensis)
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A tiny orange crayfish ('CPO') safe-ish for nano tanks; a charming scavenger that mostly leaves fish alone.

Adult size1.6"
Min tank5 gal
Temp65–77°F
pH7–8
TemperamentSemi-aggressive
SocialSolitary / pairs
Care levelEasy
DietOmnivore

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How big does a dwarf mexican crayfish get?

A dwarf mexican crayfish (Cambarellus patzcuarensis) reaches about 1.6 inches as an adult. Plan tank size and tank mates around the adult size, not the small fish you buy at the store.

Tank size & setup

Give a dwarf mexican crayfish a minimum of 5 gallons, with water at 65–77°F and a pH of 7–8. As a easy-care, omnivore species, a stable, cycled tank with the right diet keeps them healthiest.

Good tank mates

Pair a dwarf mexican crayfish with peaceful species that share its temperature and pH range. Compatible options include:

About the dwarf mexican crayfish

Cambarellus patzcuarensis is a small, threatened species of crayfish in the family Cambaridae. It is endemic to Michoacán in Mexico and often kept in aquariums.

Recommended gear for dwarf mexican crayfishs

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FAQ

What size tank does a dwarf mexican crayfish need?
At least 5 gallons. Bigger is always more forgiving for water quality.
Is the dwarf mexican crayfish good for beginners?
Yes — it's a easy-care species that tolerates typical community conditions.

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