The Fluval Hang On Breeding Box 1.9L Large is a spacious, professional-grade external breeding and isolation solution that hangs securely on the outside rim of your aquarium. Designed for serious hobbyists and breeders, this wide 1.9L unit provides significantly more room than traditional in-tank breeder nets — improving comfort, stability, and fry survival rates.
Because it hangs externally, it doesn’t take up valuable swimming space inside your display tank. The built-in air-powered system (air pump sold separately) continuously circulates fresh, filtered water from your main aquarium into the box, keeping parameters stable and oxygen levels high.
Why Choose the Fluval Hang On Breeding Box?
✔ Large 1.9L Capacity – Wide, spacious design for better comfort and reduced stress
✔ External Hang-On Design – Attaches securely to the aquarium glass rim
✔ Ideal for Livebearers – Protect newborn fry from predation
✔ Perfect for Acclimating New Fish – Safely introduce fish while monitoring behaviour
✔ Constant Fresh Water Flow – Air-powered system delivers continuous circulation (air pump required)
✔ Doesn’t Reduce Display Tank Space – Keeps your main aquascape undisturbed
Ideal For:
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Guppies, mollies, platies & other livebearers
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Fry grow-out and protection
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Acclimating new fish before full release
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Isolating injured or aggressive fish
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Controlled breeding setups
The Fluval 1.9L Hang On Breeding Box is a serious upgrade from basic breeder nets — offering improved water quality, more space, and a far more professional setup for tropical fish keepers.