Crab lighting reqirements

[erikadams25]

Hi I'm new to keeping crabs but my kids have talked us into getting a couple of moon crabs and we have a 40 gallon terrarium for them but I can't find any info on lighting doe's anyone know if they require a light with us or uvb rays?

 

[Toxoderidae]

I would give the crabs a low watt UVB bulb, but ensure they get their calcium supplement. Moon crabs are not good beginner crabs, but with work they can be kept. Can you post pictures of the enclosure?