---
product_id: 48525181
title: "FL Hang on Holding and Breeding box, L"
brand: "fluval"
price: "183 zł"
currency: PLN
in_stock: true
reviews_count: 13
category: "Fluval"
url: https://www.desertcart.pl/products/48525181-fl-hang-on-holding-and-breeding-box-l
store_origin: PL
region: Poland
---

# 1.9L capacity - compact yet spacious Clear acrylic - full visibility Tool-free setup - ready in 5 mins FL Hang on Holding and Breeding box, L

**Brand:** fluval
**Price:** 183 zł
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** FL Hang on Holding and Breeding box, L by fluval
- **How much does it cost?** 183 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/48525181-fl-hang-on-holding-and-breeding-box-l)

## 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 let you effortlessly observe fry or isolated fish without disturbance.
- • **Space-Smart External Mount:** Hangs securely outside your tank, preserving precious aquarium real estate.
- • **Gentle Air-Lift Circulation:** Uses your tank’s water flow for stable, stress-free conditions—no heater or filter needed.
- • **Effortless Setup & Maintenance:** No tools required; installs in minutes with secure brackets and easy cleaning design.
- • **Triple-Compartment Flexibility:** Customize up to 3 separate zones for breeding, isolation, or acclimatization with included dividers.

## Overview

The FL Hang on Holding and Breeding Box (L) is a 1.9-litre, clear acrylic breeding tank designed to hang externally on aquariums with at least 5mm glass thickness. Featuring up to three customizable compartments, it uses an air-lift system to circulate tank water, maintaining stable conditions without extra heaters or filters. Its tool-free installation and compact design save tank space while providing a quiet, safe environment ideal for breeding, isolating, or acclimatizing fish.

## Description

FL Hang on Holding and Breeding box, L : desertcart.co.uk: Pet Supplies

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
- For frameless aquariums use with min. 5 mm glass thickness
- Up to 3 separate compartments for breeding, isolating or acclimatizing fish, using partition plates (included)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005QRDCP2 |
| Best Sellers Rank | 9,870 in Pet Supplies ( See Top 100 in Pet Supplies ) 6 in Breeding Tanks for Fish 623 in Aquarium Accessories |
| Brand Name | Fluval |
| Colour | Black Tiger |
| Country Of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (6,023) |
| Global Trade Identification Number | 00015561109437 |
| Included Components | Breeding box, air diffuser, air tube |
| Item Dimensions L x W x H | 27.2L x 14.5W x 14.7H centimetres |
| Item Shape | Rectangular |
| Manufacturer | Rolf C Hagen UK Ltd |
| Manufacturer Part Number | 10943 |
| Material Type | Plastic |
| Model Number | 10943 |
| Product Style | Classic |
| Set Name | Marina Hang-On Breeding Box |
| Special Features | Easy to Clean, Easy to Use |
| Specific Uses For Product | Fish Breeding and Quarantine |
| Tank Volume | 1.9 Litres |
| Target Species | Fish |
| UPC | 740023371861 015561109437 |
| Unit Count | 1 Stück |
| Vivarium Type | Fish Breeding Tank |

## Product Details

- **Brand:** Fluval
- **Colour:** Black Tiger
- **Included components:** Breeding box, air diffuser, air tube
- **Material:** Plastic
- **Product dimensions:** 27.2L x 14.5W x 14.7H centimetres
- **Shape:** Rectangular
- **Special feature:** Easy to Clean, Easy to Use
- **Specific uses for product:** Fish Breeding and Quarantine
- **Style:** Classic
- **Tank volume:** 1.9 Litres

## Images

![FL Hang on Holding and Breeding box, L - Image 1](https://m.media-amazon.com/images/I/61HRvKlIj-L.jpg)

## 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.

### ⭐⭐⭐⭐⭐ Great product
*by P***K on 16 December 2025*

Excellent piece of kit for the aquatic breeder.

## Frequently Bought Together

- Fluval Multi-Chamber Holding and Breeding Box, Large – Up To 3 Separate Housing Compartments
- Ultra Fresh Baby Fish Food with 50% Sword Prawn Shrimp, Slow Sinking, Substitute for Brine Shrimp - For Fry Health and Cleaner Water
- Tiny Fry Fish Food 1.76 oz, Fine Powder for Newborn Aquarium Fish

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-10*