HCA: Hermit Crab Association

I have 1 large crab, 2 medium sized crabs, and a tiny crab.

Thank you guys for the help! He is now very active and I got a new hygrometer+thermometer! Heat and humidity are both around 80. He has been eating(or atleast touching his food). He still hangs out of his shell every few days but I think he might be cleaning it because I can see his smaller legs in ...

Hey. I have a problem with my hermit crab, Edward. I got him and 3 other crabs a little over a month ago. They have a 30 gallon(I know it’s 10 gallons small) with 7 inches of substrate, dechlorinated salt and fresh water, and a complete diet. Not sure on heat and humidity because my hygrometer and t...