Thank you! We ended up getting the tank, and it's currently sitting in our basement, waiting patiently to be filled. I have a few things I'd like to include. Are these good ideas?
-Longer pieces of cholla wood
-A second cocohut
-A spider plant (or some other live plant since I've had problems with them picking at fake ones)
-Much deeper water pools
-Add the climbing wall mat that didn't fit in the ten gallon
-A hamster wheel! I'm so excited for this one!
Also, would it be a good idea to get more crabs? I like the idea of having this tank for a while and just letting them grow into it. My two are currently molting and I expect one to come up a medium and the other a small
Any other suggestions and advice are greatly appreciated, and thank you to those who have already given advice!

Two amazing PPs: Jarvis, who has been with me since 7/14/18, and NewCrab (still unnamed) since 1/11/21!
And a tortoiseshell kitty: Delia
I'm still pretty new to this and I'm trying to learn all I can!