The best thing you can use is what was made to do that with.
How to make a hermit crab habitat second floor.
Next line the bottom of the tank with 2 to 3 inches of fine gravel or bark which you can get at a pet store.
There are several ways to make a second floor landing for your hermit crabs.
To create a hermit crab habitat buy a glass tank with a minimum of 5 gallons of space for every 2 crabs.
New hermit crab supplies.
Making use of all four walls of the tank will give your hermit crabs more room to roam and explore.
You can get very creative in making second levels with a variety of materials.
Hermit crabs rely on humidity to breathe and will begin to suffocate if their habitat is too dry.
Some use shower soap suctioned cup levels but i had a real problem when i tried that in my tank.
Custom hermit crab tank background 3d foam background by crab central station duration.
The correct range for relative humidity is 70 to 80 and should be monitored using a hygrometer a tool for measuring humidity levels.
Along with heating humidity is a very important feature in a hermit crab s habitat.
Then add objects like hollow logs and large empty hermit crab shells so that the crabs have things to climb on.