Cambarellus patzcuarensis CPO | Gambero Nano Arancione - Animal Instinct

Cambarellus patzcuarensis: The Complete Guide to the Orange Dwarf Crayfish for Your Aquarium

Valerio Chiaradonna

Learn all about Cambarellus patzcuarensis, the Mexican dwarf crayfish or CPO (Cambarellus Patzcuarensis Orange), the orange star for nano aquariums and paludariums! From Animal Instinct Roma, your specialized store for aquariums and terrariums in Rome, we bring you this guide for raising these fascinating crustaceans. Perfect for beginners or experts, available in our online shop with fast shipping throughout Italy.

Who is Cambarellus patzcuarensis? Main Characteristics

The Cambarellus patzcuarensis is a small freshwater crayfish from the Cambaridae family, native to Lake Pátzcuaro in Mexico at an altitude of over 2,000 meters.

  • Size: Males 3-4 cm, females up to 5 cm - ideal for nano aquariums from 20-50 liters.
  • Colors: In aquaristics, genetic selections have produced:
  1. Orange (CPO): Intense fire color, the most common.
  2. Blue: Intense blue that develops with growth and maturity.
  3. Yellow or choco: Rare, with yellow or chocolate brown tones
  • Appearance: Robust claws, compact body, sexual dimorphism in adults (males with rigid gonopods).

Classified Endangered (EN) by the IUCN due to anthropogenic threats, but thrives in aquariums with proper care.

Ideal Parameters for Raising Cambarellus patzcuarensis

For a perfect setup, maintain stability: these crayfish tolerate variations but thrive in natural conditions. Here is the parameter table from Animal Instinct:

Parameter Optimal Range Recommendations from Our Shop
Temperature 18-26°C (ideal 22°C) Use adjustable heaters.
pH 7.0-8.5 Test kit essential for safe molting.
GH 10-18 °dGH Mineral salts for hard water.
KH 4-9 °dKH Buffer for stable pH.
TDS 200-400 ppm RO + remineralizer recommended.

 

Minimum tank: 30 liters per group (1 male + 2-3 females). Fine substrate with catappa leaves, Java moss and hiding places (PVC tubes, coconut shells).

Feeding the Orange Dwarf Crayfish

Omnivorous opportunist: hunts debris, algae biofilm and live prey. Offer a varied diet 2-3 times/week:

  • Proteins: Frozen mosquito larvae, tubifex, daphnia, Artemia.
  • Vegetables: Dried nettle leaves, cucumber, pumpkin, boiled spinach.
  • Foods: Sinking shrimp granules (e.g., Hikari crab cuisine).

Do not overfeed: clean up leftovers to avoid ammonia spikes. In nature, they supplement with natural biofilm.

Cambarellus patzcuarensis Reproduction: Easy and Prolific

  • Maturity: 2-3 months.
  • Mating: Males "attack" females after molting; eggs (20-60) incubated for 3-4 weeks under the abdomen.
  • Juveniles: Direct birth (no larvae), independent but vulnerable
  • Longevity: 18-24 months; 3-4 broods/year.

Separate breeding tank with many hiding places; pregnant females isolate themselves.

  • Ideal with: Adult Neocaridina shrimp, snails, peaceful slow fish (Kuhli loach, Otocinclus); avoid baby shrimp or fast fish.
  • Maintenance: 20-30% weekly water changes with drip; monitor copper (zero tolerance!).

Why Buy Cambarellus patzcuarensis from Animal Instinct Roma?

In our shop Animal Instinct Roma you will find certified orange CPOs, starter kits with shelters and food, and shipping throughout Italy. Visit our store in Rome for personalized advice or order online for your perfect nano aquarium!

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