Hermit crabs can be beautiful, quirky and very active pets. They can live alone or with friends in a tiny terrarium made out of a few bowls that contain sand and pebbles. The best way to start a terrarium is to purchase a few empty, clean bowls. These can be found at your local pet store, along with other crab shells and the glass balls that contain the hermit crab’s exoskeleton (and the reason they are called terrariums). Place these bowls in a terrarium planter with plenty of new soil. The terrarium plants you use should be of a light color and be somewhat porous in nature so that water seeps in easily. Watering a terrarium can be difficult so it is recommended that you choose plants that are easy to keep watered.
Before you purchase terrarium plants, do a little homework to determine what is readily available. There are several well-known plants such as moss cacti, ferns, and bladderworts, which grow quite well in captivity. However, you will find that there are many less expensive plants that will do well in a terrarium too. Most commonly used are mosses (particularly Blue Star, Bush Rose, Royal Coach, Rust Oak, Silver Fissure, and Red Sister), ferns such as Button, Iris, and Fern, and bladderwort. All of these plants can be obtained at a fairly reasonable price from most garden centers.
The next concern is water. Watering a plant or a shell can be a tricky process so it is a good idea to purchase an inexpensive hygrometer that will indicate the moisture content of the soil. This will make it easier to determine when to water your plants or shells. Just remember not to over-water and your hermit crab tank will have an optimal growing environment.
In addition to water, you will need a thermometer. You should place the thermometer on the bottom of your terrarium. This will ensure that the temperature in your tank is controlled. A thermometer should be an accurate reading of either 75 degrees Fahrenheit or eighty degrees Fahrenheit. When placing the thermometer in the terrarium, place it in a location where it can easily be viewed. If the temperature inside the terrarium ever drops below these levels, then it is imperative that you re-place the thermometer.
To maintain the proper humidity in your terrarium, you will need to purchase a humidity meter. These are generally sold at most pet stores as part of a package. If you are using a digital thermometer, then you will only need to purchase the digital one. These are extremely inexpensive and will provide the right humidity level for your can hermit crabs.
Can Hermit Crabs will also thrive without any air plants. There are actually a few different types of “air plants” that are available, but none are known to provide any sort of natural habitat for hermit crabs. Some of the plants do provide some shade and protection for the crabs. However, they are completely green and lack any real life. The air plants are typically dark colored and do not produce any type of scent. These plants do not thrive in any reef aquarium and will not provide any type of food source for your fish.
One thing I will tell you about the plants is that they need to be provided at all times. Even if you are using an air plants, you still must provide some type of substrate for them. The best way to provide a substrate is to use rocks. This will ensure that your hermit crabs tank has the best chance to look beautiful.