- Compact dimensions: 21.5 cm x 10 cm x 13 cm (8.46 in x 3.94 in x 5.12 in). This lightweight yet premium Floating Breeding Isolation Box floats in the aquarium and fits easily without occupying excessive space while maintaining full functionality - Professional isolation design: Floating Breeding Isolation Box ideal for isolating and individually housing ornamental fish such as bettas and guppies, helping to prevent cross mixing while making observation and care easier - Ideal for fry hatching: The Breeding Box provides a secure environment for small fry to grow safely, increasing their survival by controlling hatching conditions and minimizing the risk of attacks or consumption by the mother - Quality material: Made from premium PP, this Floating Breeding Isolation Box for Aquarium Tank offers high impact resistance, ensuring a reliable and stable environment for your aquarium without compromising aesthetics - Typical uses: Isolate a new betta or guppy to prevent aggression in the main tank; hatch and rear small fry in a controlled space to improve survival; quarantine or observe sick fish before treatment