Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to take care of a land hermit crab [title] Buy a 5-10 gallon (18. 9-37.9 l) fish tank. [step] Allow a lot of room for them to roam around in. [title] Put sand in the tank.

Ending1: [step] Sand is the easiest type to provide. Use a natural-fiber aquarium paper for this. Ending2: [step] You should put enough sand so that a hermit crab could fully cover itself with it. [title] Place decorations in the tank, like rocks and miniature logs. Ending3: [step] Sure, crab are open swimmers, but otherwise don't make a lot of space around them. If you plan on using a tank off-shore, make sure the sand is safe. Ending4: [step] Hermit crabs love to play and can jump in water, but if you put sand in the tank it can get dangerous. One way to prevent this is to use a small drain in the bottom of the tank.

Answer format: ending1/ending2/ending3/ending4