age

Question
how can you tell how old a hermit crab is?

Answer
Dear Chase,
thank you for your question.
You can't, really. It's possible to judge from size, but that's only a rough estimate because growth depends on the individual crab, its diet ect. Most Jumbo crabs that are the size of a small apple or tennis ball are around 30 years or even older. Crabs the size of a dollar coin are around 5-10 years old.
I hope I was of some help to you
Jennifer