---
product_id: 6692530
title: "Fluval Multi-Chamber Holding and Breeding Box, Medium"
brand: "fluval"
price: "$75"
currency: NZD
in_stock: true
reviews_count: 11
category: "Fluval"
url: https://www.desertcart.nz/products/6692530-fluval-multi-chamber-holding-and-breeding-box-medium
store_origin: NZ
region: New Zealand
---

# External hang-on tank setup Compact 6.8x6.8x5.2 inch footprint Secure multi-chamber design Fluval Multi-Chamber Holding and Breeding Box, Medium

**Brand:** fluval
**Price:** $75
**Availability:** ✅ In Stock

## Summary

> 🐠 Elevate your fish breeding game with space-saving precision!

## Quick Answers

- **What is this?** Fluval Multi-Chamber Holding and Breeding Box, Medium by fluval
- **How much does it cost?** $75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/6692530-fluval-multi-chamber-holding-and-breeding-box-medium)

## 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

- • **Durable Tempered Glass:** Premium build quality offers long-lasting clarity and strength for professional-grade aquariums.
- • **Easy Access & Maintenance:** Quick feeding and cleaning access ensures hassle-free care for your fry and fish.
- • **Multi-Chamber Versatility:** Separate, breed, or acclimate fish safely in dedicated compartments for optimal aquatic harmony.
- • **Space-Smart Hanging Design:** Maximize aquarium space with an external mount that keeps your tank clutter-free.
- • **Perfect for Breeders & Hobbyists:** Trusted by enthusiasts for raising fry with customizable flow and filtration options.

## Overview

The Fluval Multi-Chamber Holding and Breeding Box (Medium) is a durable, tempered glass aquarium accessory designed to hang externally on tanks, providing a secure 0.3-gallon multi-chamber environment ideal for breeding, isolating, or acclimating fish. Its compact design maximizes tank space while offering easy access for feeding and cleaning, making it a top choice for both professional breeders and hobbyists aiming for optimal aquatic care.

## Description

The Fluval Multi-Chamber Holding & Breeding Box is ideal for those looking for a convenient way to separate fish from the tank. This is usually done during breeding and as a maturation tank for young fry; but there are other times when fish may need to be isolated. This box does this without taking up space in the tank. Keeping perfect aquatic harmony has never been easier.

Review: Great Breeder Box for Raising Fry - This breeder box has been perfect for raising my celestial pearl danio fry. It was easy to assemble, and I really appreciate how simple it is to access the inside for both feeding and cleaning. I did make a small modification by adding a sponge to the return since the provided grates were a bit too large and could allow fry to slip through. With that adjustment, it works wonderfully. Overall, I highly recommend this breeder box for anyone raising fry.
Review: Fantastic breeder box that needed some modifications on my end. - So I've bred peacock gudgeons and hatched most of the eggs within this container. It was attached to its own little 5 gallon tank with a HOB with carbon and extra sponge for proper filtration, keeping nitrate and nitrite at 0 despite the several-times-a-day feedings. The box definitely has potential to turn your fry container into a fry washing machine, little guys get tumbled around from the flow. The little adjuster on the airline itself did nothing for me, so I had mine hooked up to the system of my rack that let me change airflow directly from the pump. Had to lower that a decent chunk, otherwise the water flow was simply too strong. Even with that, I put some aquarium sponge on a little skewer and placed it right under the water output to catch most of the impact. I also added a piece of sponge on the outflow, because the little grate it comes with is just too big. My little fry kept escaping. I eventually learned that my fry are even small enough to go into and through the damn sponge I put in there, so I had to use something finer (which clogged easier). I also added some floaters and java moss to help with both filtration and hiding space for my little buggers. Unless you have fry that's too big to go through the little grate you definitely will need modifications. But besides all that, it's a fantastic option for hatching eggs and raising fry. My little guys are by now big enough to swim in the 5g freely while growing a little more without risk of ending up in the HOB. Given how well this entire setup worked for me I'll be getting more in the future. I've yet to try it for egg scatterers along with the one item from I believe penplax for automatic egg-harvesting, but I'll get there. And for that I'll need another one! I definitely can recommend it. It kept all my fry in a small space meaning I could give them more accurate feedings, and hook it up to its own tank to have a big water volume for great parameters. Amazing!

## Features

- Safe & secure tank for breeding, isolating or acclimating fish
- Multi-purpose use
- Space saving design
- Hangs on the outside of the aquarium
- 0.3 gallons

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005QRDDJ2 |
| ASIN  | B005QRDDJ2 |
| Best Sellers Rank | #7,428 in Pet Supplies ( See Top 100 in Pet Supplies ) #2 in Fish Breeding Tanks |
| Brand Name | Fluval |
| Color | Clear |
| Customer Reviews | 4.3 4.3 out of 5 stars (6,029) |
| Date First Available | September 21, 2011 |
| Date First Available  | September 21, 2011 |
| 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) |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 6.8 x 6.8 x 5.2 inches |
| Item Package Dimensions L x W x H | 6.89 x 5.31 x 5.08 inches |
| Item Weight | 0.7 Pounds |
| Item model number | 10942 |
| Item model number  | 10942 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer  | Rolf C. Hagen (USA) Corp. |
| Material | Tempered Glass |
| Model Name | Multi Chamber Holding and Breeding Box |
| Number of Items | 1 |
| Product Dimensions  | 6.8 x 6.8 x 5.2 inches; 11.2 ounces |
| Size | Medium |
| Specific Uses for Product | Indoor |
| Style | Modern |
| Target Audience Keyword | fish, fish;algae-eaters; betta-fish; bottom-feeder-fish; cichlid-fish; goldfish; invertebrate-fish; mollusks; octopuses; rays; sharks; snails |

## Product Details

- **Brand:** Fluval
- **Color:** Clear
- **Item Weight:** 0.7 Pounds
- **Material:** Tempered Glass
- **Product Dimensions:** 6.8"L x 5.2"W x 5.3"H
- **Shape:** Rectangular
- **Special Feature:** Lightweight
- **Specific Uses For Product:** Indoor
- **Style:** Modern
- **Tank Volume:** 1.9 Liters

## Images

![Fluval Multi-Chamber Holding and Breeding Box, Medium - Image 1](https://m.media-amazon.com/images/I/71taM+M+UYL.jpg)

## Available Options

This product comes in different **Customer Package Type, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Breeder Box for Raising Fry
*by K***M on September 25, 2025*

This breeder box has been perfect for raising my celestial pearl danio fry. It was easy to assemble, and I really appreciate how simple it is to access the inside for both feeding and cleaning. I did make a small modification by adding a sponge to the return since the provided grates were a bit too large and could allow fry to slip through. With that adjustment, it works wonderfully. Overall, I highly recommend this breeder box for anyone raising fry.

### ⭐⭐⭐⭐⭐ Fantastic breeder box that needed some modifications on my end.
*by A***A on June 11, 2024*

So I've bred peacock gudgeons and hatched most of the eggs within this container. It was attached to its own little 5 gallon tank with a HOB with carbon and extra sponge for proper filtration, keeping nitrate and nitrite at 0 despite the several-times-a-day feedings. The box definitely has potential to turn your fry container into a fry washing machine, little guys get tumbled around from the flow. The little adjuster on the airline itself did nothing for me, so I had mine hooked up to the system of my rack that let me change airflow directly from the pump. Had to lower that a decent chunk, otherwise the water flow was simply too strong. Even with that, I put some aquarium sponge on a little skewer and placed it right under the water output to catch most of the impact. I also added a piece of sponge on the outflow, because the little grate it comes with is just too big. My little fry kept escaping. I eventually learned that my fry are even small enough to go into and through the damn sponge I put in there, so I had to use something finer (which clogged easier). I also added some floaters and java moss to help with both filtration and hiding space for my little buggers. Unless you have fry that's too big to go through the little grate you definitely will need modifications. But besides all that, it's a fantastic option for hatching eggs and raising fry. My little guys are by now big enough to swim in the 5g freely while growing a little more without risk of ending up in the HOB. Given how well this entire setup worked for me I'll be getting more in the future. I've yet to try it for egg scatterers along with the one item from I believe penplax for automatic egg-harvesting, but I'll get there. And for that I'll need another one! I definitely can recommend it. It kept all my fry in a small space meaning I could give them more accurate feedings, and hook it up to its own tank to have a big water volume for great parameters. Amazing!

### ⭐⭐⭐⭐ Great product with multiple uses
*by M***L on June 10, 2024*

I've been using the 0.5 gallon breeder box for a few months now and it has worked really well so far. I use it for drip acclimation, as a holding tank for new fish/shrimp, and as a breeding tank to raise fry. It is very convenient, efficient, and easy to set up. Many of the negative reviews mention the little gate piece allowing fry to escape into the main tank. This is easily remedied by adding a piece of sponge filter in front of the gate. It is a little bit on the noisy side, but I actually enjoy the sounds of bubbles and trickling water. Other than that, the only two issues I have is that the the male connection to the airline tubing can get clogged with bacteria/biofilm which reduces the flow. This can be fixed by simply cleaning it with a test tube brush. Flow is also reduced if the water level in the main tank is lower, so just keep that in mind. The other issue is that waste can accumilate on the bottom of the chamber and it is not efficiently removed. I say this because all of my cory catfish fry died presumably because of the excess bacteria buildup on the bottom of the chamber. However, I probably overfed with first bites and didn't do a good job of siphoning out the waste. Despite these potential drawbacks, I believe that this breeder box is the best on the market.

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-14*