# Fluval 10943 Hang-On Breeding Box, 1.9 L

The Fluval 10943 hang-on breeding box is a plastic aquarium accessory listed for fish breeding and quarantine. Its 1.9-litre capacity and up to three partitioned compartments suit separating fish or fry, while its stated frameless-tank fit has a minimum glass thickness requirement.

- [Original product page](https://bargainpostbox.co.uk/product/fluval-10943-hang-on-breeding-box)
- [View offer](https://bargainpostbox.co.uk/visit/fluval-10943-hang-on-breeding-box)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Fluval
- Model: 10943
- Category: Pet Supplies > Aquariums & Terrariums
- Price: 11.69 GBP
- Previous price: 18.52 GBP
- Discount: 37%
- Price checked: 2026-11-13T06:02:48.019Z
- Rating: 4.4 / 5
- Reviews: 6200

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Designed to hang on the exterior of an aquarium, with a space-saving format.
- Partition plates are listed for creating up to three separate compartments.
- The listing names breeding, isolation and acclimatisation as uses.

## Pros

- A single box can be divided into as many as three compartments for separating fish.
- The external hang-on design leaves the aquarium interior less occupied than an internal box.

## Specifications

### Identity and capacity
- Brand: Fluval
- Model: 10943
- Tank volume: 1.9 Litres
- Shape: Rectangular
### Dimensions and installation
- Dimensions listed: 27.2L x 14.5W x 14.7H centimetres
- Weight listed: 1.2 Pounds
### Materials and features
- Material: Plastic
- Special features: Easy to Clean, Easy to Use
- Maximum compartments: Up to 3 separate compartments for breeding, isolating or acclimatizing fish, using partition plates \(included\)
- Frameless aquarium fit: For frameless aquariums use with min. 5 mm glass thickness

## Before you buy

- Customer feedback is mixed about the box's size and durability, including reports of cracked units. The listing gives a 1.9-litre capacity. One customer-feedback summary notes that an air pump may be needed for circulation, so buyers should account for suitable aeration and verify their setup.

## In the box

- Breeding box (Included)
- Air diffuser (Included)
- Air tube (Included)
- Partition plates (Check selected pack): The feature listing says these are included.

## A good fit for

- Fish keepers seeking a small external box for breeding, isolating or acclimatising fish.
- Aquarium owners who want to divide a box into multiple compartments.

## Less suited to

- Buyers needing a large nursery or a standalone tank rather than a 1.9-litre hang-on box.
- Owners of frameless aquariums with glass thinner than the stated 5 mm minimum.

## Customer feedback

Customer feedback highlights useful functionality and fry-raising suitability, alongside positive comments about the design. Experiences are mixed on size, durability, value and air circulation, and noise is criticised. The 1.9-litre capacity and up-to-three-compartment layout give some context for the reported size concerns, while the air diffuser and tube listed in the kit do not establish that an air pump is included.
- Positive themes: Customers report that the box works well for raising fry and like its design and functionality.
- Negative themes: Noise level is criticised in customer feedback.
- Mixed feedback: Feedback differs on size, durability, value for money and air circulation. Some describe it as sturdy while others report cracks, and one account says a separate air pump is needed.

## Frequently asked questions

### How many compartments can the box have?
The listing says it can be divided into up to three separate compartments using included partition plates.
### What aquarium fit requirement is stated?
For frameless aquariums, the listing specifies a minimum glass thickness of 5 mm.
### Is an air pump included?
The listed contents are the breeding box, an air diffuser and an air tube. A pump is not named in that contents list, and customer feedback notes that a separate air pump may be needed.

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## Add-ons

- [Tetra AquaSafe to Turn Tap Water into Safe and Healthy Water for Fish and Plants, 500 ml](https://bargainpostbox.co.uk/visit/fluval-10943-hang-on-breeding-box)
- [Fluval Bug Bites Tropical Granule Fish Food 45g](https://bargainpostbox.co.uk/visit/fluval-10943-hang-on-breeding-box)

## Images

![Fluval 10943 Hang-On Breeding Box, 1.9 L — 1](https://bargainpostbox.co.uk/i/2RnKx0960RkwvbZMHD4zB14dSq1xumPVmXzxc5xjJEex-REZon6VPqg9HTzwDWn2yt4t-frXiMDduJP5xvOnhKYE5rsTSgrHnN0gGMRQSzE2J59NEnU64QJ9.jpg)

![Fluval 10943 Hang-On Breeding Box, 1.9 L — 2](https://bargainpostbox.co.uk/i/ImWq7QM4yog8VDSgz2sLWiITlMADK9uybUs5gTGIeIi9epAfTa6ab8zFcCJt9s-0AdmSLvZTPj4g21a0UAIPgltxMXFY2ICXCZE6NxMJ1br2NZ5ViXNTY4Au.jpg)

![Fluval 10943 Hang-On Breeding Box, 1.9 L — 3](https://bargainpostbox.co.uk/i/19K4sp0tV0aj9FJ0kE-ncue4xPcwvG-4CG9VloWuhTPHfAPojAhNOiOuZcKQh_HTLJQDgGFFQ1JC1HaMxXG7cAbC3l9VOS637887AW2ggaLf1IIGZRu6QcJm.jpg)

![Fluval 10943 Hang-On Breeding Box, 1.9 L — 4](https://bargainpostbox.co.uk/i/RRn9EAuQQTSt08sWXv8zCPHPzkEs0eU1GH5EDgYeeZq9F6GPYW_uzmuTEb8jycd6kIohdO_0wcyBuP49QIuV_cA1H5veuCfo6acnDgZbOgJh53720GPSWm08.jpg)

![Fluval 10943 Hang-On Breeding Box, 1.9 L — 5](https://bargainpostbox.co.uk/i/h0p12ETxLFJbMLJdOOptxxq5ntYlI7qddPdL5fQCb1enqD9k9mY4d-YLU2OcdhMaB3UxrdUmjJ9MShCcg_m64yKN8_zGgKXrLis14duqLuEYS08uD7L0ScAw.jpg)

![Fluval 10943 Hang-On Breeding Box, 1.9 L — 6](https://bargainpostbox.co.uk/i/MqNo1gFozqiAycn2ps8jPR1Zbv_Uo_oIQchpShVkmDMsgoTdRquEM1EVv9Z74x7crBgmcVhgzRWF2n-o63FgojkjG7hKnbcuOTULCBUgLEo9nxmkD0Ngjdtf.jpg)