Interactive Playground The Douyu Swimming Tunnel creates an engaging play area in your fish fighting setup. Its hollow tubes feature small and large openings that encourage exploration and activity for your aquatic pets. Safe and Secure Shelter Provides a hiding, resting, and playing space for Douyu, Xiaoyu, and shrimp. The tunnel includes invisible hammocks and suction cups to secure a comfortable, safe shelter within the setup. Sturdy and Lightweight Construction Made of PP (polypropylene), this multipurpose toy is safe, durable, wearresistant, and easy to handle. Designed to withstand regular use in fishkeeping environments. Clear Visibility and Engagement The hollow tubes offer good visibility and a sense of security for your aquatic pets, delivering hours of entertainment and enrichment. Compatibility and Performance Compatible with Douyu, Xiaoyu, and shrimp species. Lightweight yet sturdy design provides reliable performance in various tank configurations. Use Scenarios Scenario 1: In a community or display tank, place the Douyu Swimming Tunnel to create an interactive playground. Fish can swim through openings, explore the tubes, and engage in natural movement patterns. Scenario 2: During introductions of fish or tank mates, use the tunnel as a safe hiding and resting area to reduce stress and support acclimation. Scenario 3: As enrichment in a species tank, small fish and shrimp can explore the tubes, improving activity levels and providing ongoing mental stimulation.