Clear Fish Breeder Box – Betta, Fry & Shrimp Isolation Tank

Keep Your Baby Fish Safe & Thriving

Give your fish fry, shrimp, and pregnant bettas the protected space they deserve. This clear acrylic fish breeder box attaches securely inside any aquarium, creating a safe, separate zone for newborns, injured fish, or aggressive betta fish — without needing a second tank.

Why You'll Love This Breeder Box

• Protects Baby Fry: Keeps vulnerable fish fry and shrimp safe from larger, aggressive tank mates during their most critical growth stage.
• Floating or Fixed Design: Comes with 2 suction cups so you can mount it securely to the inside wall of your tank or allow it to float on the water surface — your choice.
• 3 Sizes Available: Choose from Small (12.5×7×7 cm), Medium (13×7.1×10 cm), or Large (20.5×9.5×9.9 cm) to fit your aquarium perfectly.
• Removable Partitions: Unique design with removable dividers and a small groove, ideal for separating injured, aggressive, or breeding fish without stress.
• Built-In Water Flow Vents: Side vents maintain optimal, continuous water circulation — no extra heater or air pump required.
• Tool-Free Installation & Easy Cleaning: Snaps in and out in seconds with no tools needed. Smooth acrylic surfaces wipe clean effortlessly.
• Clear Acrylic Construction: 100% transparent material lets you monitor your fish at all times without disturbing them.
• Multi-Purpose Use: Perfect for breeding mother fish, raising young fry, isolating diseased fish, housing betta fish, or trapping shrimp.

Specifications

Who Is This For?

This breeder box is ideal for aquarium hobbyists of all levels — from beginners setting up their first betta tank to experienced aquarists managing multiple breeding pairs of guppies, mollies, or tropical fish. It's also a brilliant solution for quarantining sick fish without removing them from the main tank's water parameters.

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Learn More About Responsible Fishkeeping

For tips on maintaining healthy aquatic environments for your fish, visit the U.S. Fish & Wildlife Service – Fisheries, a trusted authority on aquatic animal care and conservation.

Frequently Asked Questions

Q: Can this fish breeder box be used in both freshwater and saltwater aquariums?

A: Yes! The clear acrylic fish breeder box is compatible with both freshwater and saltwater aquariums. The non-electric design and water-flow vents allow natural circulation in any tank environment, making it suitable for betta fish, guppies, shrimp, and most tropical fish species.

Q: How do I attach the fish breeding isolation box to my tank?

A: The box includes 2 suction cups that attach firmly to the interior glass wall of your aquarium. No tools are required — simply press the suction cups against the glass and adjust the height as needed. It can also be left to float freely on the water surface.

Q: What is the best size breeder box for betta fish or baby fry?

A: For betta fish isolation or small batches of fry, the Small (S) or Medium (M) size works well. If you're breeding larger fish or need to house multiple fry simultaneously, the Large (L) size offers more space and is ideal for incubating and raising growing fish safely.

Q: Does the breeder box require a separate heater or air pump?

A: No additional equipment is needed. The built-in side vents allow water from your main tank to flow through naturally, maintaining consistent temperature and oxygen levels for the fish inside the breeder box without any extra power source.