Simple Hermit Crab Pool

Did you know that hermit crabs need to fully submerge their shells in order to stay properly hydrated? Well I didn't! That is, until a friend of mine asked me to design and print some hermit crab pools for her little buddies (Flounder and Sebastian). Hermit crabs up to 4 inches should be able to completely submerge themselves in the pool to clean/bathe. The sides are designed to be climbable as they can use their little claws to climb the tank and jump in AND a ramp to provide an easy way for th