Acrylic Aquarium Isolation Box – Fry Breeder & Spawning Hatchery

Acrylic Aquarium Isolation Box – Fry Breeder, Spawning & Hatchery Divider

Keep your fish fry, shrimp, and juvenile fish safe with this premium transparent acrylic aquarium isolation box. Designed for hobbyists and aquarists, this versatile breeder box separates vulnerable fish from the main tank population, improving survival rates and giving young or delicate fish the protected environment they need to thrive.

Key Features

• Crystal-Clear Acrylic Construction: High-quality transparent material lets you observe fish at all times without disturbing them.
• Multi-Purpose Design: Functions as a spawning box for live-bearing fish, a hatchery for eggs, and an isolation chamber for aggressive, injured, or small fish.
• Secure Suction Cups Included: Heavy-duty suction cups allow easy, stable attachment to the inside of your aquarium wall.
• Transparent Lid: Prevents fish from jumping out while maintaining full visibility.
• Floating Double-Layer Design: Space-saving dual-layer construction keeps fry separated from adult fish while allowing water circulation.
• Hook Attachment: Convenient hook included for flexible positioning inside your tank.
• No Batteries Required: Completely passive — no electricity, pumps, or batteries needed.

Available Sizes

• 8×8×8 cm (3.15×3.15×3.15 in)
• 10×10×10 cm (3.94×3.94×3.94 in)
• 10×10×15 cm (3.94×3.94×5.91 in)
• 15×15×15 cm (5.91×5.91×5.91 in)
• 20×10×10 cm (7.87×3.94×3.94 in)
• 20×10×10 cm with two boxes (7.87×3.94×3.94 in)
• 20×15×15 cm with two boxes (7.87×5.91×5.91 in)
• 30×15×15 cm (11.81×5.91×5.91 in)

Specifications

• Material: Acrylic (Plastic)
• Color: Transparent
• Battery Required: No
• Country of Origin: Made in China

What's in the Box?

• 1× Aquarium Isolation Box

Ideal For

• Protecting newborn fry from adult fish
• Spawning and egg-hatching separation
• Isolating aggressive or stressed fish
• Shrimp breeding and juvenile shrimp protection
• Freshwater and saltwater aquarium setups

Love keeping your aquarium clean and organized? Check out our Aquarium Water Exchanger & Vacuum Cleaner to keep your tank in top condition. You might also find our Large Capacity Battery Storage Organizer Box handy for keeping your aquarium accessories tidy.

Note: Colors may appear slightly different due to monitor brightness and lighting conditions. Please allow ±1 cm measurement deviation. 1 cm ≈ 0.39 inches.

Learn more: U.S. Fish and Wildlife Service

Frequently Asked Questions

Q: What fish are best suited for this aquarium isolation box?

A: This acrylic isolation box is ideal for live-bearing fish such as guppies, mollies, and platies, as well as small fry, shrimp, and any juvenile or delicate fish that need protection from larger or more aggressive tank mates. It can also be used to safely quarantine injured fish.

Q: How does the aquarium breeder box attach to the tank?

A: The isolation box comes with high-quality suction cups that firmly attach to the interior glass wall of your aquarium. It also includes a hook for additional flexible mounting options, making setup quick and tool-free.

Q: Is this isolation box suitable for both freshwater and saltwater aquariums?

A: Yes! The transparent acrylic construction is compatible with both freshwater and saltwater aquarium environments. Simply rinse before first use and attach securely using the included suction cups.

Q: Does water circulate through the isolation box?

A: Yes. The floating double-layer design allows water to flow through, ensuring the fish inside receive adequate oxygenation and remain part of the tank's water ecosystem while staying safely separated from other fish.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.