
Electric Blue Marron 15cm
Electric Blue Marron (15 cm)
Scientific Name: Cherax sp. "Blue Marron"
Category: Freshwater Crustacean | Size: ~15 cm | Temperament: Semi-Aggressive | Origin: Selectively Bred (Australia)
The Electric Blue Marron is a visually stunning freshwater crayfish known for its intense cobalt-blue coloration and bold, armored appearance. Reaching up to 15 cm, this selectively bred variety of the Australian Marron (Cherax tenuimanus) is prized for its vivid hue and distinctive presence. Hardy and adaptable, it makes a unique and captivating addition to large, species-appropriate tanks.
Key Features:
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Striking electric blue body with high-gloss exoskeleton
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Large, powerful claws used for defense and territorial displays
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Active scavenger with bold personality and occasional aggression
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Rare in the hobby; highly desired by crustacean enthusiasts
Water Parameters:
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Temperature: 68–75°F (20–24°C)
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pH: 6.5–8.0
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Moderately hard water preferred
Feeding:
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Omnivorous scavenger – accepts sinking pellets, algae wafers, shrimp, and fish-based protein
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Enjoys blanched vegetables such as zucchini, carrots, and peas
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Supplement with calcium-rich foods to support molting and shell health
Tank Requirements:
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Minimum tank size: 55 gallons for a single adult
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Hardscape with plenty of hiding spots: rocks, PVC tubes, and driftwood
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Secure lid – excellent climbers and escape artists
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Moderate filtration with stable, clean water
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Best housed alone or with fast, surface-dwelling tankmates (risk of aggression toward slow fish or bottom-dwellers)
Ideal For:
Crustacean lovers and aquarists seeking a truly eye-catching centerpiece. The Electric Blue Marron is best suited for a species-dedicated setup or a cautiously chosen community. With its vibrant color and curious behavior, it provides both visual appeal and a fascinating focal point for experienced keepers.