The Complete Guide to Keeping Halloween Moon Crabs
Halloween Moon Crab care guide for Gecarcinus quadratus, covering enclosure size, deep moist substrate, temperature, humidity, freshwater and saltwater, feeding, behaviour, moulting and common health issues. These colourful semi-terrestrial crabs need a secure 60 x 45 cm or larger vivarium, with 70–80% land, 20–30% shallow water, and 15–20 cm of burrowing substrate. Keep temperatures at 24–28°C and humidity at 70–85%, feed a varied omnivorous diet with calcium, and avoid handling or overcrowding. With proper care, Halloween Crabs can live for 5–10 years.