Feeding approach
Offer a mix of animal- and plant-based foods; log preferences, where leftovers collect, and appetite changes around molts.
Weight management
Weigh only occasionally; focus on limb integrity, territory use, and molt rhythm.
Immunization management
Immunization is not routine; prioritize new-individual isolation, enclosure sanitation, and group conflict monitoring.
Parasite-control management
Parasite and fungal risks tie to damp substrate, ventilation, and water cleanliness—avoid chronic stuffy, overly wet setups.
Visit and recording advice
Common problems include failed molts, limb loss, fasting, or persistent hiding; log temperature-humidity curves and wet versus dry zone ratios.
Practical points
Keep a fixed template: environmental parameters plus molt log plus conflict notes.
Breed breakdown (click for details)
Vampire Crab
Height: typical carapace width about 2 to 3 cm
Weight: weight as a low-frequency reference
Lifespan: about 2 to 4 years
Eyes: Bright eye color and intact walking legs are preferred; persistent hiding should prompt checks for environmental stress.
Rainbow Crab
Height: typical carapace width about 10 to 20 cm
Weight: Typical adult about 200 to 500g
Lifespan: about 5 to 8 years
Eyes: Eye and claw integrity are key checks; limb loss and anorexia should be tracked together with conflict and molt events.
Red Claw Crab
Height: typical carapace width about 4 to 6 cm
Weight: weight as a low-frequency reference
Lifespan: about 3 to 5 years
Eyes: Claw color and activity response can indicate health; prolonged curling posture suggests stress and requires attention.
Fiddler Crab
Height: typical carapace width about 2 to 5 cm
Weight: weight as a low-frequency reference
Lifespan: about 2 to 4 years
Eyes: Eyestalk movement and waving behavior can be used as vitality indicators.
Structured fields are aligned with the Chinese page: height, weight, lifespan, and eye traits.