Official Licensed SpongeBob aquarium ornament from Nickelodeon - Adds the recognizable Bikini Bottom world to your fish tank, great for fans - Compatible with both fresh water and salt water aquariums - Solid base provides stable bottom placement, no floating drift - Internal hollow area lets most small and medium sized fish swim through or inside, helping reduce boredom - The material is suitable for use in freshwater and saltwater environments - Cleaning and maintenance: never use soap; rinse with clean water before introducing to the tank - Safe placement: ensure the ornament is fully submerged and free of sharp edges before adding fish - Size note: most small and medium sized fish can fit into this ornament Use scenarios - In a community freshwater tank, it serves as an engaging focal point and hiding space for small fish - In a saltwater or mixed environment, it provides a familiar decorative element while offering swim-through opportunities - In educational or kids’ tanks, it offers a recognizable theme that encourages observation without compromising safety