【Small hole hollowing is safer for small fish】The betta tunnel has improved the size of the hollow. The design of the ultra-small hole prevents small fish and betta fish from passing through the small hole, which is more suitable for small fish, shrimps and young betta fish. It is convenient While you observe the dynamics of fish and shrimp, they will play safer in the fish hole. 【Secret Betta Tube】 Bettas can come and go freely in the tunnel. The big openings of the betta cave on both sides are convenient for fish and shrimps to enter at any time as a refuge. They can hide and avoid the attacks of other fish. 【Easy to Clean】Made of high-quality resin, our black betta fish tunnel is more resistant to dirt and corrosion, and won't change color due to accumulated dirt. Simply rinse with water and a small brush to clean as new. 【Perfect Fish Tank Decorations Gift】Our Betta fish house has a beautiful appearance and unique design, making it both the fun betta fish toys and the beautiful aquarium decorations.It's the great gift for friends who own fish tanks and love fish and shrimp.