HCA: Hermit Crab Association

How big typically do Ecuadorian crabs get? I managed to find a tiny one at a pet store and I’m wondering how big he will grow.


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I think most people say they hit around the size of a tennis ball. Pretty big, but definitely not as big as other crabs species.

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My largest had a legspan that was just as big as a Jumbo PP, but because they like tiny shells he never seemed that huge because he never took up as much space.

Most Es only survive for a few years in captivity and they don't grow super quick, so it's not a huge worry about their final size if you're getting smaller crabs.

Wow! Everywhere online said that Es dont get any bigger than 1/2 an inch, but I knew that had to be false. Mine is fairly little now, just at 1/2 inch.


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Oh wow- I would absolutely love to have an adult E! (I said adult, just mean an older and larger crab!)
But- at the sane time I would feel so bad bc they would have lived on the beach free for many years before having to try to adapt to captivity... I guess unless we can get better about keeping them so that we have less issues losing them... I adore mine and I would love nothing more than to see them grow that big!!


Dave the Wondercrab~Pat~Maggie~ Billy~Pop~Corn~Ten~Sam~MissTeri~Tim~Gene~ Barry~Mr S~Princess + 5 Es + Mr EnDoh =my crabby clan!

This was my biggest guy. He was absolutely wedged into that shell! And he did that to the edge himself to make room for his eyes.