1. Safety: The aquarium fish decorations are made of ecofriendly resin materials, which are nonpolluting, stable, not easily damaged, faderesistant, and easy to clean. Suitable for both freshwater and saltwater aquariums. 2. Details: These aquarium resin decorations feature intricate details and delicate colors, adding a vibrant and natural touch to your aquarium. The ornaments have holes, allowing your adorable pet betta or other small fish to happily swim in and out of the cave for sleeping, resting, hiding, and playing. 3. ApplicationThe base of the aquarium fish decoration is flat, ensuring stable placement at the bottom of the tank without floating. To prevent fish injuries, the surface has no sharp edges. Suitable for small aquarium pets such as bettas, hermit crabs, suckerfish, guppies, and small crawling pets. 4. Appearance DesignThis aquarium decoration is crafted to mimic natural trees, with the texture of the trees meticulously reproduced.