Safe separation
Dual-side slots ensure continuous water circulation while keeping fry contained.
- Free shipping
- 14-day easy returns
- Secure checkout
- Quality guaranteed
1 / 6
Why customers love it
A safe nursery for your fry, right inside the tank
This clear acrylic breeding box keeps fry separated from adult fish while letting water flow through dual-side slots. The floating design and transparent lid create a secure, low-stress space for raising guppies, bettas, and other small fish.
- Dual-side slots keep water circulating continuously while containing fry
- 1mm gap prevents juveniles from escaping while allowing water exchange
- Floating design lets you position it anywhere in the tank, and the double-layer structure saves space
- Transparent lid stops fish from jumping out, with a center hole for easy feeding
- Strong suction cup keeps the box securely attached to aquarium walls
- Made from durable, clear acrylic for easy monitoring
Why you'll love it
Escape-proof
The 1mm gap prevents juveniles from escaping while still allowing water exchange.
Flexible placement
Floating design lets you position it anywhere in the tank, and the double-layer structure saves space.
Jump protection
Transparent lid stops fish from jumping out, with a center hole for easy feeding.
Specs
The details that matter
Built to last outdoors, season after season.
- Size
- 11x8x7CM
- Main Color
- White
- Material
- Acrylic
- Product Type
- Fish breeding isolation box
Comparison
Why choose this breeding box
Not all products in this category are built the same.
Feature
SmartPicksWorld
Typical alternative
Water circulation
Dual-side slots ensure continuous water circulation
Limited or no water flow
Fry containment
1mm gap prevents juveniles from escaping
Larger gaps allow fry to slip out
Placement
Floating design lets you position it anywhere in the tank
Fixed position only
Space efficiency
Double-layer structure saves space
Bulky single-layer design
Our worry-free shopping promise
If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.
Frequently asked questions
Everything you might want to know before you order.
What size is this fish breeding isolation box?
The box measures 11x8x7CM and is made from clear acrylic, making it easy to monitor fry inside.
How does the box keep fry from escaping?
The 1mm gap prevents juveniles from escaping while still allowing water exchange, so fry stay safely contained.
Can I place the box anywhere in my aquarium?
Yes, the floating design lets you position it anywhere in the tank, and the double-layer structure saves space.
How do I feed the fish inside the box?
The transparent lid has a center hole for easy feeding, so you can drop food in without removing the lid.
How does the box stay attached to the aquarium?
A strong suction cup keeps the box securely attached to aquarium walls, while the floating design also allows flexible placement.
Shipping & returns
Shipping
- Delivers to United States (based on your selected country/region).
- Estimated delivery: 3–15 business days after dispatch.
- Shipping cost: Free.
Returns
You can request a return within 14 days after delivery. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.
