Code: HAG18053 Drinking area for land Hermit Crabs Prevents drinking sponges from quickly drying out Crabworx Drinking Pool is an ideal way to ensure that your crabs have easy access to ample amounts of drinking water. Simply place one or two drinking sponges in the pool then add de-chlorinated fresh drinking water until a small amount of water remains in the pool. Drinking Pool and sponges should be cleaned daily.