---
product_id: 737074252
title: "Multi-Chamber Holding and Breeding Box, Large – Up to 3 Separate Housing Compartments (Pack of 6)"
brand: "fluval"
price: "€ 401.45"
currency: EUR
in_stock: true
reviews_count: 10
url: https://www.desertcart.fi/products/737074252-multi-chamber-holding-and-breeding-box-large-up-to-3
store_origin: FI
region: Finland
---

# Uses aquarium water circulation, no extra heater/filter needed Fits aquariums up to 1” thick, space-saving design 3 separate compartments for versatile fish care Multi-Chamber Holding and Breeding Box, Large – Up to 3 Separate Housing Compartments (Pack of 6)

**Brand:** fluval
**Price:** € 401.45
**Availability:** ✅ In Stock

## Summary

> 🐠 Elevate your fish care game with Fluval’s multi-chamber breeding box — because your fry deserve the best!

## Quick Answers

- **What is this?** Multi-Chamber Holding and Breeding Box, Large – Up to 3 Separate Housing Compartments (Pack of 6) by fluval
- **How much does it cost?** € 401.45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/737074252-multi-chamber-holding-and-breeding-box-large-up-to-3)

## 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

- • **Space-Smart & Visible:** Compact 10.25” L x 5.5” W x 4.75” H design hangs externally for easy monitoring and care.
- • **Low-Maintenance Design:** No need for additional heaters or filters—uses your aquarium’s existing water flow.
- • **Triple-Chamber Control:** Up to 3 separate compartments to isolate fry, sick, or new fish with ease.
- • **Universal Aquarium Fit:** Clips securely on tanks up to 1” thick for seamless integration.
- • **Optimized Survival Zone:** Protects newborn fry from predators, boosting survival rates dramatically.

## Overview

The Fluval Multi-Chamber Holding and Breeding Box (Large, Pack of 6) offers three separate compartments designed to protect fry, sick, or new fish by attaching easily to aquariums up to 1” thick. Its compact, space-saving design uses your aquarium’s existing water circulation, eliminating the need for extra heaters or filters. Ideal for improving fry survival rates and acclimating new fish, this versatile breeder box is compatible with both fresh and saltwater tanks, making it a must-have for serious aquarists.

## Description

desertcart.com : Fluval Multi-Chamber Holding and Breeding Box, Large – Up to 3 Separate Housing Compartments (Pack of 6) : Pet Supplies

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

- The information below is per-pack only
- Compatible with Most Aquariums: Easily attaching to the side of most aquariums up to 1” thick, the Multi-Chamber Holding & Breeding Box provides up to 3 separate compartments for protecting fry, sick/weak fish or new fish that require acclimation.
- Required Parts: Please note that this multi-chamber will require an Air Pump (1 L/per minute) and Airline Tubing, both of which are sold separately.
- Usage: Ideal as a hatchery and incubator to help protect newborn fry from being eaten (which improves survival rate). Provides a safe haven for injured or weak fish. Helps acclimate new fish as water circulates from the aquarium
- Space-Saving: This chamber’s design measures 10.25″ L x 5.5″ W x 4.75″ H (26 x 14 x 12 cm) and holds 0.5 US Gal (1.9 L) of water. Hangs onto aquarium exterior for easily observing fish and convenient maintenance.
- Versatile: Utilizes the same conditioned water as your aquarium, no additional heater or filter required. Can be used with fresh and saltwater aquariums.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FC2BY8Z7 |
| ASIN  | B0FC2BY8Z7 |
| Best Sellers Rank | #8,120 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 (6,036) |
| Date First Available | June 7, 2025 |
| Date First Available  | June 7, 2025 |
| Directions | Follow individual packaging instructions. |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 10.7 x 5.7 x 5.8 inches |
| Item Package Dimensions L x W x H | 11.5 x 6.26 x 5.39 inches |
| Item Weight | 7.2 Pounds |
| Item model number | 10943 |
| Item model number  | 10943 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer  | Rolf C. Hagen (USA) Corp. |
| Material | Plastic |
| Number of Items | 6 |
| Product Dimensions  | 10.7 x 5.7 x 5.8 inches; 7.2 Pounds |
| Size | Large (Pack of 6) |
| Specific Uses for Product | Indoor |
| Style | Modern |
| Target Audience Keyword | fish |

## Product Details

- **Brand:** Fluval
- **Color:** Clear
- **Item Weight:** 7.2 Pounds
- **Material:** Plastic
- **Product Dimensions:** 10.25"L x 5.5"W x 4.75"H
- **Special Feature:** Space-Saving, Transparent, Modern
- **Specific Uses For Product:** Indoor
- **Style:** Modern
- **Tank Volume:** 0.5 Gallons
- **Vivarium Type:** Aquarium

## Images

![Multi-Chamber Holding and Breeding Box, Large – Up to 3 Separate Housing Compartments (Pack of 6) - Image 1](https://m.media-amazon.com/images/I/61HRvKlIj-L.jpg)

## Available Options

This product comes in different **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.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.fi/products/737074252-multi-chamber-holding-and-breeding-box-large-up-to-3](https://www.desertcart.fi/products/737074252-multi-chamber-holding-and-breeding-box-large-up-to-3)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-10*