HCA: Hermit Crab Association

You put the lid on top of the bowl with water and stones?
What is the bottom bowl with rocks for?
is this the fresh water pool??

Has anyone ever used a 10 gal and made layers/levels to it? i'd love to utilise all the space available for them, any advice? If yall have done it before please post pics!! Actually, any 10 gallon tanks please post pics for ideas!!!! thanks

Wow, thank y'all for the info!!! I really needed it! I'm going first thing tomorrow to get real salt water and some better fresh water, the stuff you recommended is perfect. I can't wait to get them set up with it, I'm sure they will appreciate it! I added tuna and some egg shells, but I'll use my b...

is tuna okay?

1. How often to feed? I put food in at night before work but it doesn't look like they've eaten when i get home. Do i change it out every day? I feed them the crushed up food from the pet store.... is that enough? 2. How do i keep humidity up? I'm setting up my tank now, i have a heater for the out...