Dwarf Blue Mexican Crayfish – The Tiny Tank Boss in Sapphire Armor 🦞💎

Scientific Name: Cambarellus patzcuarensis “Blue”
Category: Freshwater Invertebrates

💙 A Pocket-Sized Powerhouse

Looking for attitude in a fun-sized package? The Dwarf Blue Mexican Crayfish, also called the Blue CPO Crayfish, is a brilliantly colored, personality-packed crustacean that brings big energy to nano tanks. This selectively bred blue morph of Cambarellus patzcuarensis (originally native to Lake Pátzcuaro, Mexico) sports electric blue armor, tiny pincers, and an inquisitive nature that makes it the life of the substrate.

Unlike their larger and more destructive crayfish cousins, these guys stay petite—rarely exceeding 1.5 inches—and are less aggressive, especially when kept solo or with fast-swimming, non-bottom-dwelling tankmates. But don’t let their size fool you—they’re full of character, always exploring, rearranging decor, and showing off their sapphire suits.

🔍 What to Expect:

• Color: Vibrant cobalt to electric blue

• Size: 1.25–1.6 inches as adults

• Behavior: Territorial but manageable; great solo pets

• Lifespan: 1.5–2 years

• Breeding: Will breed in freshwater (beware—babies are tiny and fast!)

💧 Care & Conditions:

• Temp: 70–78°F (21–25.5°C)

• pH: 6.5–8.0

• GH/KH: Moderate hardness for shell health

• Substrate: Sand or gravel, with hides and plants

• Diet: Sinking pellets, blanched veggies, protein-rich treats

• Tank Size: 5+ gallons per crayfish

✅ Why You’ll Love It:

• Stunning blue coloration that pops in any aquascape

• Small size makes it nano-tank compatible

• Active and bold personality—fun to watch

• Less destructive to plants than large crayfish species

• Can be housed solo or as a unique crusty companion in peaceful setups

🎁 Bonus Tip:

Provide plenty of hiding spots (like cholla wood, caves, or leaf litter) to help them feel secure during molts—because no one likes being caught without their armor. 🦞🛡️

🎁 Bonus Tip:

Want to keep your Dwarf Orange Mexican Crayfish happy and healthy? Make sure they have plenty of places to hide—they love cozy spots where they can feel secure, like caves or mossy plants! 🦞🌿

Complete your shrimp order with some vibrant plants! They provide essential hiding spots and enhance the natural look of your tank, creating a healthier, more enriching environment for your shrimp. Add plants to your order for a thriving, beautiful setup!

Check out the DOA POLICY and SHIPPING INFORMATION before placing an order!

Size: Juvenile/Adult

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