Enjoy the magical world of Bikini Bottom within your fish tank. MADE OF SAFE AND DURABLE RESIN: Our aquarium ornaments are inspected with your fish's safety in mind. The material used is safe for both freshwater and saltwater aquariums. Each decoration has a sturdy base. There's no need to worry about it floating around once you place it underwater. SUPER SIMPLE TO CLEAN: Simply wipe down and rinse off the aquarium ornament with warm water when you are cleaning out your tank. Never use soap, as the residual soap particles can harm your fish. This fun aquarium decoration will instantly add magic to your tank! Most small and medium fish can fit inside, allowing them to swim in and around it. This helps reduce fish boredom! It's designed to be the perfect accent to any aquarium, regardless of size. Get creative!