Land Hermit Crabs
The land hermit crab makes a wonderful pet. It is friendly, intelligent, odour free and very clean. This crab has evolved to live on land and uses an empty shell as a portable home, as well as for protection. Land hermit crabs are land animas and must not be kept in water.
Housing
Use an aquarium with a glass cover. Humidity is essential to the crab’s well being. The floor of the aquarium should be kept dry on one half and moist on the other it can be covered with sand or aquarium gravel as long as it’s fine enough for them to dig. A piece of driftwood or mangrove root will provide a great play ground as Land hermit crabs love to climb.
Heat
The land hermit crab is tropical and is best kept at about 30C. Do not let the temperatures drop below 20C. Installing a low wattage heat cord under the aquarium or desk lamp with a red or blue bulb above the aquarium provides heating. Make sure a thermometer is used to monitor temperature. And make sure humidity is in the high 80 – 90s
Water
Two bowls of water must be provided; one containing freshwater for drinking, the other containing seawater for bathing. Use one level teaspoon sea salt per 100 mls of fresh water. Ensure the water bowls are sturdy and cannot be tipped over. Change the water frequently to keep it clean.
Food
A range of foods can be offered including fish pellets, any cereal, bread, shredded coconut, apple, and other varieties of fruit. Only put in small quantities at a time to ensure it is fresh when eaten.
Extra Shells
The crab will climb out of its shell and "put on" a new one from time to time. Therefore, a few spare shells should be kept in the aquarium for this purpose. It is essential a slightly larger size one is available to the crab after it has molted.
Molting
Like other crabs, the land hermit crab needs to cast off its outer skeleton, usually twice a year. After it has molted, the crab needs to be left alone for several weeks until it's new skeleton hardens.
Habits
The land hermit crab is somewhat nocturnal by nature and will sleep during most of the day. Low temperature and low humidity also sends it into its shell. Warm humid air and the warmth of your hand are usually sufficient to wake it up.
If well cared for these crabs will live for several decades. Most will only grow a few mm each molt.