in the regular tank I have half of it filled with sand half of it filled with coconut fiber, 2 climbing sticks, 2 coconuts for them to sit under, 2 water dishes, 2 food bowls, a net, a moss pit, LOTS of shells and LOTS of wood. Some of which sits under the edges of the coconuts to prop them up because the three year old one was tiny when we got it but is now HUGE. Last night I got a fourth crab and I've decided to name it yip yip after the aliens from the kids show. And currently yip yip is in the iso tank until Tuesday so that he can it situated. And he's already changed shells! (In the iso there is a climbing stick, a log they can sit under, two food bowls, two water dishes and plenty of shells.)My current crabs names are Costello (~3 years male,) pip (~1 year male,) poppy (~1 year female gotten at same time as pip, we thought she was a he until about a week ago) and yip yip (~1 day gender unknown, assumed to be a he)
