Also, what is the best way to feed calcium? My family doesnt really keep much in the house as far as meats (Ok we have summer sausage, and pepperoni, but those are both seasoned and are pretty unhealthy), so I'm at a bit of a loss with protein (I kinda hate bugs, but if I need to I can feed dead bugs, but I would prefer if there was another option). I do have access to these organic freeze dried cat treats that (if memory serves) comes in salmon, turkey, and chicken-I give them as treats for my hamsters, but would those be safe/enjoyed by crabs? I do buy carrots and romaine lettuce for my guinea pig (who eats like well.. a pig! So we always have a ton of them laying around that the hermits could eat from as well). I also enjoy broccoli and blueberries, so often times we have those (so if we're stocking them for crabs, they wont be wasted). But I feel like thats not much variety for a scavenger animal... what are some other items I can add?
I also have a small reptile food dish my one hamster currently has (but it is super cleanable), and its maybe 4 inches by 2 inches-would this be an ok size for four 1" large pps? I can of course buy a larger one, but if I can re-use, that will save me some money (come to think of it, I do have a a few ceramic/resin reptile toys I have gotten for the hamsters that I could re-use for them, including a reptile basking bridge/ramp, and a hermit coconut-looking hide. And I already stock sand for the hamsters, so I currently have over half a bag that can be used for crabs.)
For water-I know they need a fw and a sw pool, but should I also have a small container of fresh water by their food? Or is that not necessary? And for 1" pps how deep should the pool be? Also are the pretty "in ground" reptile bowls like the one below worth it, or are they going to out grow it so fast it isnt?

I think they're really pretty, so if they're worth it, I'll likely go with two of those.
Thank you
