The Fluval Hang On Breeding Box 1.1L Medium is a compact yet spacious external breeding and isolation solution designed to give fish extra room while keeping your main display tank untouched.
Unlike traditional in-tank breeder nets, this unit hangs securely on the exterior glass rim of your aquarium, preserving valuable swimming space inside your aquascape. Its built-in air-powered system (air pump sold separately) continuously draws water from your main tank into the box, ensuring stable parameters, steady oxygen levels, and healthier fry development.
The 1.1L size is perfect for hobbyists who want a professional-style breeding or acclimation setup without the bulk of a larger unit.
Why Choose the Fluval 1.1L Breeding Box?
✔ Wide & Spacious Design – More room than standard breeder nets
✔ External Hang-On Installation – Attaches securely to most aquarium rims
✔ Ideal for Livebearers – Protect newborn fry safely
✔ Excellent for Acclimating New Fish – Gradually introduce fish while monitoring behaviour
✔ Continuous Water Circulation – Air-powered system delivers fresh tank water (air pump required)
✔ Keeps Your Display Tank Clear – No bulky box inside your aquascape
Ideal For:
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Guppies, mollies, platies & other livebearers
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Fry protection and grow-out
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Temporary isolation of injured or aggressive fish
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Controlled breeding projects
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Safe fish acclimation
The Fluval Hang On Breeding Box 1.1L is a clean, professional upgrade from basic breeder nets — offering improved water quality, better space, and safer fish management.

