As a potential hermit crab owner, you might be wondering if there is a limit to the number of hermit crabs you can have in a certain amount of space. This is something I first wondered when I started keeping hermit crabs as pets. There is no really easy way to answer that question with exact numbers and measurements. The best number of hermit crabs to have for a certain amount of space all depends on the type of situation you have, space-wise. When deciding how many hermit crabs you can house, you have to consider tank size, personal space, and furnishings.
The first thing you need to consider when you are trying to determine how many hermit crabs you can house is tank size. This is a factor. If you have the minimum 10-gallon aquarium, you are most certainly not going to be able to house as many hermit crabs as a person with a 150-gallon aquarium. The small hermit crab kit cages are most certainly not adequate for one hermit crab to live in comfortably, let alone more than one. A 10-gallon aquarium is the smallest recommended to house a single crab and be able to expand your crab habitat somewhat.
Another thing you must take into consideration when deciding how...