HCA: Hermit Crab Association

I have nearly 3 dozen shells in the tank but my baby still refuses to switch so I'm trying to find new shells. All the options but one are too big or too small, and the one listing I did find was around 60 for 3 which is way too much for a gamble. I was wondering if there were any cheaper options wi...

Substrate is roughly 6 inches of sand. Humidity around 90% Temps around 80-85. No new chemicals or major changes recently. Just cleaning the surface of the substrate as not to disturb the crab. Roughly 1-2 dozen shells. There are no sponges. There is one crab remaining in a 50 gallon tank. He melted...

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according to my analog hygrometer my humiditys gone up since I started misting and added a third water bowl, which they seem to be using. Is that dangerous? Do I need to fix it, and if so how
Stay awesome guys, gals, and non binary pals

Thank you guys ill consider it and if I do I'll take your advice

I recently received two hermit crabs from a lady who no longer wished to care for them, and i was wondering if I should get them some friends. They have been together by themselves for 4+ years and have had little to no exposure with other crabs. Just wondering if that would cause a lot of fighting ...

There both starting to move around the enclosure and show drastically increased appetite and bathing. Think it was post purchase trauma

1. What kind of substrate is used in your tank and how deep is it? I use play sand from home depot, and it is 6-10 inches deep. 2. Do you have gauges in the tank to measure temperature and humidity? If so, where are they located and what temperature and humidity do they usually read? I have a therm...