---
product_id: 49943313
title: "Fluval Hang-On Breeding Box, Medium, 1.1 Litre"
brand: "fluval"
price: "£21.43"
currency: GBP
in_stock: true
reviews_count: 8
category: "Fluval"
url: https://www.desertcart.co.uk/products/49943313-fluval-hang-on-breeding-box-medium-1-1-litre
store_origin: GB
region: United Kingdom
---

# Air-lift water circulation 1.1 Litre capacity Hang-on external mount Fluval Hang-On Breeding Box, Medium, 1.1 Litre

**Brand:** fluval
**Price:** £21.43
**Availability:** ✅ In Stock

## Summary

> 🐠 Elevate your breeding game—secure, sleek, and stress-free!

## Quick Answers

- **What is this?** Fluval Hang-On Breeding Box, Medium, 1.1 Litre by fluval
- **How much does it cost?** £21.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/49943313-fluval-hang-on-breeding-box-medium-1-1-litre)

## Best For

- fluval enthusiasts

## Why This Product

- Trusted fluval brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Crystal Clear Monitoring:** Transparent acrylic walls provide full visibility to track your fish’s growth and health with ease.
- • **Space-Smart External Mount:** Maximize your aquarium space with a sleek hang-on design that keeps your tank clutter-free.
- • **Customizable Fry Segregation:** V-shaped separator and optional dividers let you isolate multiple fry or species safely.
- • **Gentle, Continuous Water Flow:** Air-lift circulation ensures stable water conditions without stressing delicate fry or shrimp.
- • **Effortless Setup & Maintenance:** Tool-free installation and easy cleaning mean you’re up and running in minutes, no hassle.

## Overview

The Fluval Hang-On Breeding Box (Medium, 1.1 Litre) is a modern, space-saving aquarium accessory designed for breeding, isolating, or acclimatizing fish fry. Featuring a secure external mount, air-lift driven water circulation from the main tank, and customizable compartments, it maintains stable water conditions without extra heaters or filters. Its clear acrylic construction offers easy monitoring, while the tool-free setup and gentle flow ensure a stress-free environment for your aquatic life.

## Description

Hang-on breeding box safely segregates fish fry, with continuous water circulation from the main aquarium maintaining ideal conditions without additional equipment.

Review: Fluval hang on breeding box - Honestly the best ever breeding box i have ever purchased space savings hangs on the outside once connected to air supply fills itself. No instructions needed self explanatory up and running in 5 minutes Recommend purchase will be buying another
Review: Clean, quiet, and stress-free—ideal for fry, isolation, or breeding without crowding your main tank. - Mounted this on a 120L community tank to isolate fry and a stressed guppy—worked spot-on. It hangs externally, so it doesn’t take up space inside the tank. Water circulates from the main tank using an air pump (not included), keeping temperature and chemistry consistent. No heater needed, no separate filtration—just plug in and go. Setup took about 10 minutes. Suction cups and brackets hold firm, even when full. Flow’s gentle—no risk of fry getting tossed around. I’ve used it for guppy fry, shrimp, and even a short quarantine stint. Easy to observe, feed, and clean. 📦 Features & Specs Capacity: 1.1 litres Mounting: Hang-on design with secure brackets Flow System: Air-lift driven—uses tank water for circulation Compartments: Optional dividers for multiple fry or isolation zones Material: Clear acrylic—easy viewing, solid build Extras: Includes tubing and flow adjuster (air pump not included) 🧪 Performance Water Quality: Stays stable—no separate heater or filter needed Noise Level: Near silent—just a soft bubbling from the air pump Cleaning: Easy to rinse and wipe down—no awkward corners Visibility: Clear sides make it easy to monitor fry or isolated fish 👍 Pros ✅ External mount—saves tank space ✅ Gentle flow—safe for fry and shrimp ✅ Stable conditions—uses tank water ✅ Easy setup—no tools needed ✅ Optional dividers—customise layout 👎 Cons ❌ Air pump not included—must buy separately ❌ Limited size—best for small fish or fry ❌ Needs level tank edge—check fit before mounting ❌ No lid—watch for jumpers or evaporation 🧭 Personal Verdict If you’re breeding, isolating, or just want a clean way to manage fry without stressing your main tank, this box is a tidy bit of kit. I’ve used it for guppies and shrimp—no drama, no losses. It’s earned its spot in the gear stash.

## Features

- Multi-purpose
- Safe & secure tank for breeding, isolating or acclimatizing fish
- Space-saving design, easily installs on the exterior of the aquarium
- Fish fry slip through the v-shaped separator and are safely segregated from adults
- Measures 16 cm (6 1/3") wide and holds 1.2 liters (0.3 us gal.) of water.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005QRDDJ2 |
| Best Sellers Rank | 7,758 in Pet Supplies ( See Top 100 in Pet Supplies ) 3 in Breeding Tanks for Fish 429 in Aquarium Accessories |
| Brand | Fluval |
| Brand Name | Fluval |
| Colour | klar |
| Country Of Origin | China |
| Customer Reviews | 4.3 out of 5 stars 6,031 Reviews |
| Global Trade Identification Number | 00015561109420 |
| Included Components | Breeding box with cover, Intake tube, V-shape separator, Leveling adjuster, Air valve, Airline tube 12" (30 cm), Discharge cap, Intake extension, O-Ring, Strainer, 2 x Slit plates for discharging water (1 thick frame - 3 bars, 1 thin frame - 5 bars) |
| Item Dimensions L x W x H | 17.3L x 13.2W x 13.5H centimetres |
| Item Shape | Rectangular |
| Item Type Name | Breeding Box |
| Item Weight | 0.7 Pounds |
| Item weight | 0.7 Pounds |
| Manufacturer | Rolf C Hagen UK Ltd |
| Manufacturer Part Number | 10942 |
| Material | Glass |
| Material Type | Glass |
| Model Number | 10942 |
| Product Style | Modern & Minimalist |
| Product dimensions | 17.3L x 13.2W x 13.5H centimetres |
| Set Name | Fluval Multi-Chamber Breeding Box Set |
| Special Features | Hang-on Design |
| Special feature | Hang-on Design |
| Specific Uses For Product | Aquarium |
| Tank Volume | 1.9 Litres |
| Tank volume | 1.9 Litres |
| Target Species | Fish |
| UPC | 015561109420 |
| Unit Count | 1 count |
| Vivarium Type | Fish Breeding Tank |

## Product Details

- **Brand:** Fluval
- **Colour:** klar
- **Item weight:** 318 g
- **Material:** Glass
- **Product dimensions:** 17.3L x 13.2W x 13.5H centimetres
- **Shape:** Rectangular
- **Special feature:** Hang-on Design
- **Specific uses for product:** Aquarium
- **Style:** Modern & Minimalist
- **Tank volume:** 1.9 Litres

## Images

![Fluval Hang-On Breeding Box, Medium, 1.1 Litre - Image 1](https://m.media-amazon.com/images/I/71taM+M+UYL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: what size is the inlet tubing/piping if i was to plumb it up to a power head?**
A: You need to connect the piping to an air pump, not a power head.  It fits regular 4/6mm air tubing

**Q: How far does the box stick out if hind from back of side of tank?**
A: Depends on the thickness of the rim, mine sticks out 100mm or 4 inches

**Q: I have a biorb round tank, would this fit on the outside?**
A: No this is really for a tank that has got a lid. It didn’t fit my tank as mine has a lid. So unless the tank has no lid. Then it won’t fit.

**Q: Can this be used as a hospital tank for a siamese fighting fish (beta)?**
A: It uses the same water as your main tank so it would depend on why you are hospitalising your Beta. For injuries it would be ok but not for disease treatment.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fluval hang on breeding box
*by K***Y on 9 February 2026*

Honestly the best ever breeding box i have ever purchased space savings hangs on the outside once connected to air supply fills itself. No instructions needed self explanatory up and running in 5 minutes Recommend purchase will be buying another

### ⭐⭐⭐⭐⭐ Clean, quiet, and stress-free—ideal for fry, isolation, or breeding without crowding your main tank.
*by G***E on 21 September 2025*

Mounted this on a 120L community tank to isolate fry and a stressed guppy—worked spot-on. It hangs externally, so it doesn’t take up space inside the tank. Water circulates from the main tank using an air pump (not included), keeping temperature and chemistry consistent. No heater needed, no separate filtration—just plug in and go. Setup took about 10 minutes. Suction cups and brackets hold firm, even when full. Flow’s gentle—no risk of fry getting tossed around. I’ve used it for guppy fry, shrimp, and even a short quarantine stint. Easy to observe, feed, and clean. 📦 Features & Specs Capacity: 1.1 litres Mounting: Hang-on design with secure brackets Flow System: Air-lift driven—uses tank water for circulation Compartments: Optional dividers for multiple fry or isolation zones Material: Clear acrylic—easy viewing, solid build Extras: Includes tubing and flow adjuster (air pump not included) 🧪 Performance Water Quality: Stays stable—no separate heater or filter needed Noise Level: Near silent—just a soft bubbling from the air pump Cleaning: Easy to rinse and wipe down—no awkward corners Visibility: Clear sides make it easy to monitor fry or isolated fish 👍 Pros ✅ External mount—saves tank space ✅ Gentle flow—safe for fry and shrimp ✅ Stable conditions—uses tank water ✅ Easy setup—no tools needed ✅ Optional dividers—customise layout 👎 Cons ❌ Air pump not included—must buy separately ❌ Limited size—best for small fish or fry ❌ Needs level tank edge—check fit before mounting ❌ No lid—watch for jumpers or evaporation 🧭 Personal Verdict If you’re breeding, isolating, or just want a clean way to manage fry without stressing your main tank, this box is a tidy bit of kit. I’ve used it for guppies and shrimp—no drama, no losses. It’s earned its spot in the gear stash.

### ⭐⭐⭐⭐⭐ Perfect purchase.
*by T***F on 1 May 2026*

Quite possibly the best thing I’ve ever purchased in terms of exceeding expectation. Sturdy, well-designed, functional… I wish I’d bought this before wasting money on DIY efforts and nets. Babies are safe and secure, it’s easy to gaze lovingly at them, there are no fears about parameters… there is nothing not to love about this.

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-14*