HCA: Hermit Crab Association

Can you have crabs of different sizes with each other? Or will they eat each other?

I've read large crabs will eat smaller crabs. How much larger do they have to be for this to be a concern? I'm nervous about my crabs doing this!

Crabs will only eat/harm eachother if there is not enough resources for all of them. If their is enough shells, protein, and space you should be fine. It does not matter the size of the crab. They live in groups of babies to 30 year old jumbos in the wild peacefully!

I agree that it is not likely in most cases


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