Replacement shells for land hermit crabs, in four sizes. A growing crab has to change shells periodically, and if there is nothing suitable available it will either stay in a shell that has become too tight or, in a crowded tank, start fighting another crab for theirs. Keeping a few spare shells on the substrate is cheap insurance against both.
Benefits
- Four sizes — small, medium, large and extra large.
- Natural shell shape — what a crab is looking for when it goes shopping.
- Sized for growth — offer shells a step up from what the crab is wearing now.
Choosing and using them
- Offer several shells at once, in a range slightly larger than the crab's current one — crabs are fussy and will try a few before committing.
- Keep spares available at all times, not just when you think a change is due.
- Rinse new shells in dechlorinated water before they go in.
- Never pull a crab from its shell.
Add colour with Neon Crab Shells. More in Zoo Med.




