♬Safe Hideouts : Unique tunnel design provides an ideal shelter for fish to hide from predators or rest when stressed, creating a secure and comfortable . ♬Floating Feature : Light weight Polylactic Acid construction allows it to float on water surfaces without sinking, offering fish play spaces at any depth in the aquarium. ♬Consist of Polylactic Acid, ensuring without harm to water and keeping fish and shrimp in freshwater or saltwater tanks. ♬Breathable Design : Multiple holes enhances water flows and oxygen circulations, maintaining a water for all tanks inhabitant. ♬Easy to : Smooth surfaces requires minimal maintenance—just rinse with warm water to keep the aquarium and hygienic.