Dwarf Orange Mexican Crayfish
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Dwarf Orange Mexican Crayfish
Scientific Name: Cambarellus patzcuarensis "Orange"
Common Names: CPO Crayfish, Orange Dwarf Crayfish, Mexican Dwarf Lobster
Origin: Captive-bred (originally native to Mexico)
Why They're Popular
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Bright orange color adds contrast to freshwater tanks
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Fully peaceful dwarf crayfish – safe for most community fish
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Small size makes them ideal for nano tanks
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Active scavengers that help keep the aquarium clean
Care Level
Easy – Hardy and beginner-friendly
Temperament
Peaceful; may defend itself but rarely harms tank mates. Safe with most small fish, snails, and shrimp (except very tiny fry).
Tank Requirements
| Requirement | Details |
|---|---|
| Minimum Tank Size | 5+ gallons |
| Temperature | 70–78°F |
| pH | 6.5–8.0 |
| Hardness | Moderate to Hard (helps proper shell growth) |
| Diet | Omnivore – sinking pellets, algae wafers, veggies, meaty frozen foods |
Size
~1.5 inches full grown
Feeding
Will eat just about anything, including:
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Sinking pellets & wafers
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Blanched veggies (zucchini, spinach, cucumber)
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Frozen foods (bloodworms, brine shrimp)
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Algae & leftover fish food
Supplement calcium-rich foods for proper molting.
Notes
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Provide caves, rocks, or plants for hiding during molting
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Completely safe for live plants
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Can be kept singly, in pairs, or small groups (well-fed = no aggression)
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Does not dig or destroy aquascapes like larger crayfish