My daughter has two hermit crabs. We keep hearing conflicting info. My daughter's book said that we could use bottled water for bathing and to put in their crabitat. But on another site , I saw that you can use tap water and condition it to take the chorine out. I have fish so i am familiar with this. My question is, how long do you guys wait after conditioning the water to put it in the crabitat? Do you let it sit for a while? I will use a water conditioner that is by top fin. It dechlorinates but also most of them contain a slime coat for healthy fish...Is this ok to use? Also, regarding sea sponges. My daughter has two of them in her tank..Is this ok? should she be rinsing them out and then wetting them with the treated dechlorinated water? or in salt water? Her kit came with a shell to put the food in..and a shell to hold water. We got a little bigger one off the beach while we were there...but after reading the forums think that she may need a bigger "pool" Her crabitat isn't huge..so any suggestions? Or is the shell fine. They can't submerse themselves in it..Can i put salt water in a shell..is that enough for them? Thanks so much everyone!!!