Suspension Multifunctional Isolation Box 1. The acrylic breeder box can be used as a spawning box for viviparous fish such as betta, guppy, killifish, etc. 2. The fish breeder box can prevent baby fishes from being attacked by adult fishes and improve the survival rate of baby fishes. 3. Self-floating design and wall-mounted design, double-layer combination does not occupy space, unique floating design can move everywhere without sinking. 4. The crystal-clear aclimation box can watch the fishes without any obstruction, adding fun. When to use isolation box? 1. As a breeding box for viviparous fish, such as betta, guppy, killifish, etc. 2. Serve as a refuge for small fishes to avoid adult fish attacks. 3. Isolate the injured fish. 4. Isolate attacking fish. Specification Material: Acrylic Color: Transparent Dimensions: 3.94" x 2.75" x 5.11" (M) / 5.5" x 3.1" x 5.5" (L) / 7" x 3.1" x 6" (XL) Package includes: 1 x isolation box for aquarium 2 x suction cups SERVICE: If the product you received has any problems, please feel free to contact us.No need to open the cover when feeding because of the design with a feeding hole on the top. The suctions cup is made with Environment-friendly materials, better adsorption. Perfect isolator for aggressive fish, injured fish, small fish, shrimp and other marine fishes. Fishes such as Betta, Guppy, Killifish, Clownfish and other small fishes. Space-saving and can float automatically, this acrylic isolation box can be fixed on the aquarium wall by suction cup. The two-level combination does not take up space. High-quality transparent materials, durable. Can safely and reliably breed, isolate or adapt to fish. Crystal transparent body. It's easy to observe the females giving birth. The breeder box can be used as spawning box for betta, guppy, etc. The fish isolation box can prevent small fish from attacking and improve the survival rate of fish.Best Sellers Rank: See Top 100 in Pet Supplies. Color: Blue. Style: Modern. Material: Acrylic. Target Species: Fish. Brand: J-star. : B08B8VQ91X. Manufacturer: J-star. Date First Available: June 16, 2020. Package Dimensions: 6.26 x 5.47 x 2.99 inches; 8.15 Ounces.