I don’t have a lot of horizontal space in my house–is it okay to have a small-based but extremely tall tank for hermit crabs, basically with the necessary deep sand, but with multiple ‘tiers’ for them to climb and bathe and hang around?
Yes so long as your substrate is sufficiently deep and with a smaller footprint you may want to make the substrate even deeper than recommended so you don’t have a problem with molters crowding each other. The base should allow for both water dishes as well. Making multiple tiers is a great idea. You can also use fish netting and other climbables to make every vertical surface climbable. Stop by the forums for suggestions from our members.
Your friend in a pinch,