I’m getting empty hermit crab shells today so my crabs have room to move and grow. Do I need to do anything to prepare them, such as dipping before placing them in the tank.
Use your best judgement. If you are concerned, give them a quick bleach bath and let them dry completely. At the very least you could give them a good rodi rinse and rub b4 adding. Read the amazon reviews too to see if anyone has had issues.