So, im getting a 10 gallon terrarium turned into a crabihat, I want some hermit crabs!
I'm using sand as a substrate, maybe three or four inches deep,
How many hermit cabs can go in there, three?
What do they eat?
Can I have two shells for each crab?
Do they really need salt water, or can they only have fresh water
Anything else important I need to know?