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View compareScientific Name: Cambarellus texanus
Category: Freshwater Crayfish
Meet the Brazos Crayfish (Cambarellus texanus), a true Texan native from the Brazos River basin. Unlike its larger, tank-busting cousins, this dwarf crayfish species stays a petite 1.5–2 inches—making it a perfect fit for nano tanks and community setups. It’s feisty, curious, and endlessly entertaining, often seen strutting across the substrate like it owns the place (because it probably thinks it does).
The Brazos Crayfish is known for its rusty orange-to-tan coloration with subtle mottling, giving it a natural, camouflaged look that blends beautifully into planted or leaf-littered aquascapes. They’re generally peaceful but will defend their territory—making plenty of bold displays with their tiny pincers.
Size: 1.5–2 inches fully grown
Color: Tan to reddish-brown with speckling
Lifespan: 1.5–2 years with good care
Behavior: Curious, slightly territorial, highly interactive
Reproduction: Breeds readily in freshwater; eggs carried under female’s tail
Temp: 68–78°F (20–25.5°C)
pH: 6.8–8.0
Hardness: Moderate hardness preferred for healthy shell growth
Tank Size: 5+ gallons per crayfish
Diet: Sinking pellets, blanched vegetables, protein treats, occasional algae wafers
Perfect nano-friendly crayfish species
Hardy and easy to care for
Adds personality and movement to your tank
Safe with plants and small, fast fish (but may grab very slow tankmates)
Breeds in freshwater, so you can grow a tiny crayfish colony
Provide lots of hiding spots—cholla wood, shrimp caves, or leaf litter—to reduce stress and aggression, especially if keeping more than one in the same tank. 🏜️🦞
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.
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!)
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
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
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. 🦞🛡️
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!
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Size: Juvenile/Adult
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