HCA: Hermit Crab Association

I am looking into getting some exotic species. I know how to care for them but how many gallons does beach one need?

The more the better. Exotics need a lot more substrate to dig in, which typically requires a much bigger tank. Personally I wouldn't go with less than a 40B or a 55 for relatively few crabs - they need the space and some types don't handle crowding as well as PPs. I don't know the specific crabs per gallon ratio since I don't own exotics, so maybe someone who owns some can chime in on their setup.

This may help

viewtopic.php?t=92541


Zoo mom of 3 cats, a dog, a fish and 3 (for now) crabs