 Several hiding places should be provided; the use of driftwood, aquarium décor, and aquatic plants (real or plastic/silk) are ideal.Despite what many hobbyists may say, Red Claw Crabs are not fully aquatic and must have access to land.This can be done by having a half-land-half-water style aquarium set-up, or by having aquarium decorations that are taller than the water line.