(UA) Dwarf Blue Mexican Crayfish (Cambarellus patzcuarensis sp. Blue) [≈ 2cm]

Description

Dwarf Blue Mexican Crayfish (Cambarellus patzcuarensis sp. Blue)

📌 Basic Info

• Scientific Name: Cambarellus patzcuarensis sp. “Blue”

• Common Names: Dwarf Blue Crayfish, Blue CPO

• Family: Cambaridae

• Origin: Mexico (Lake Pátzcuaro region)

• Size: 1.5 – 2 inches (4 – 5 cm)

• Lifespan: 2 – 3 years

• Tank Zone: Bottom dweller

🌊 Water Parameters

• TDS: 150 – 250 ppm

• pH: 6.5 – 7.8

• Temperature: 20 – 26°C (68 – 79°F)

• Hardness: 6 – 12 dGH

🦞 Characteristics

• Striking bright blue coloration, sometimes with orange highlights.

• Smallest crayfish species commonly kept in aquariums.

• Much more peaceful than larger crayfish; less destructive to plants.

• Active and curious, often seen walking around instead of hiding all the time.

• Can regenerate lost limbs after molting.

🍽️ Food

• Type: Omnivorous scavenger.

• Diet: Sinking pellets, algae wafers, blanched vegetables (zucchini, spinach, cucumber), occasional protein foods (bloodworms, shrimp pellets).

• Feeding Schedule: Once daily in small amounts; remove uneaten food to avoid fouling water.

🛠️ Tank Setup & Maintenance

• Tank Size: Minimum 10 gallons (for 1–2 crayfish).

• Filtration: Gentle but efficient; they prefer stable, clean water.

• Decor: Provide hiding spots with caves, rocks, PVC pipes, and plants.

• Substrate: Sand or fine gravel; they like to dig.

• Water Changes: 20–25% weekly.

👥 Social Behavior

• Generally peaceful for a crayfish species.

• Can be kept singly or in small groups if enough hiding places are provided.

• May occasionally nip slow or sleeping fish but usually safe with peaceful community tank mates.

✅ Do’s

• Provide multiple caves/hiding spots, especially if keeping more than one.

• Ensure tight lid – they can climb and escape.

• Keep stable water conditions; sensitive to ammonia/nitrite.

❌ Don’ts

• Don’t house with large aggressive fish (they may attack or eat the crayfish).

• Don’t overcrowd – can lead to territorial fights.

• Don’t keep in tanks with strong currents or poor oxygenation.

⭐ Quick Tips

• A beautiful, hardy, and relatively peaceful dwarf crayfish perfect for nano and community aquariums.

• Safer with live plants than larger crayfish.

• Their bright blue color makes them a centerpiece in any small tank.