HCA: Hermit Crab Association

I did a deep clean today - removing decor, filling holes. I found one empty shell that I am pretty sure belonged to a crab. Our tiny one is capable of hiding way back in his shell unnoticed, but I think this shell is too heavy for him. No signs of the other 3, but I smoothed out the top so hopefully...

Humidity is fairly stable at 90% - 85% at the lowest.

It's well water - regularly tested for impurities, etc.

1 play sand eco earth mixed, sand castle consistency, 7-8 inches deep 2 gauge is top left corner, 75 at night, up to 85 in the day 3 two heaters - one on the back, one on the side. Both are currently off as temps were getting to be 100 in the day 4 salt and fresh water in dishes deep enough to subme...

For the past month my crabs have showed no sign of activity. Food is ignored, water never has signs of dirt (or poop). The moss hasn't been thrown around, no new holes. Prior to this a few weeks I only had one of my four crabs above ground. I don't know if I assume death, or what?

In my 20 gallon tall tank I mixed a 50lb bag of play sand and 2 bricks of ecoearth. I'm not sure what kind of ratio that is, but it gave me approximately 7 inches of height.

With my tank, I have two uth heaters - one on the back, one on one side. The one on the side I can't insulate, but I have the other insulated with foil, foil wrapped cardboard, and then foam posterboard over the entire back, as well as around the substrate on all sides. Then I have a screen lid and ...

It ranges 75-95 currently. Warmer by the heaters, cooler on the glass farthest away from them

She moved back in some when I lifted the lid, so I'm assuming not limply? She ended up in the water bowl last night before bed (first time I've actually seen on IN the bowl), and now she's in her shell but still by the heater. Heat is back up, but it's still cold and snowy outside, so I'm thinking i...

One of my crabbies is up and she's hanging partially out of her shell (alive, she went in more when I opened the lid) by the heater. Is it pretty safe to assume she's just cold? We have had a few days of cold rain and now it's snowing, so the room temp dropped a bit. I'm working on getting the heat ...

I've been scouring the local pages here for a good deal on a second, smaller tank for an iso (hard to do since we have a 20 g, most people are getting rid of 50+ here). I need a smaller one for it to fit next to our current. However, I'm not sure what to do with it once I get it. There are no pet st...

Mine is about 7" and some of the tunnels go halfway down before they close it off lol

How do you smooth the top without risking burying/collapsing? My teeny guy never finishes a cave. He always uses either a decoration or a pool as the top of his cave. I think it's because he always chooses such big shells for his size.

Sounds like a project for once I get a good iso up and running then.

We've had our crabs for two months now. All 4 have successfully molted, and now they have started destroying the tank, constantly! I can only assume this is a good sign. Shells have been flung across the tank. Moss is strung all over. They're starting to bury food. There's hardly a spot on the surfa...