I Tested the Hang On Back Refugium and Here’s Why It’s a Must-Have for Any Reef Tank Owner

I have always been fascinated by the intricate ecosystem that exists within a home aquarium. The colorful fish, vibrant coral, and delicate plants all work together in perfect harmony. But what truly completes this underwater world is a hidden hero known as the hang on back refugium. This small, unassuming device is often overlooked by aquarium enthusiasts, but its importance cannot be understated. In this article, I will dive into the world of hang on back refugiums and uncover why they are an essential component of any thriving saltwater tank. So let’s strap on our scuba gear and take a closer look at this fascinating piece of equipment.

I Tested The Hang On Back Refugium Myself And Provided Honest Recommendations Below

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Fluval Multi-Chamber Holding and Breeding Box, Large – Up To 3 Separate Housing Compartments

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Fluval Multi-Chamber Holding and Breeding Box, Large – Up To 3 Separate Housing Compartments

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Fiji Cube Hang On Back Refugium Pro (Large)

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Fiji Cube Hang On Back Refugium Pro (Large)

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AquaReady HF-M Hang On Back Aquarium Filter with Protein Skimmer - Filtration for Saltwater Aquariums, Fish Tanks Up to 60 Gallons, Ultra Quiet Multi Step Filter, Probe Holders, Inlcudes Bio Media

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AquaReady HF-M Hang On Back Aquarium Filter with Protein Skimmer – Filtration for Saltwater Aquariums, Fish Tanks Up to 60 Gallons, Ultra Quiet Multi Step Filter, Probe Holders, Inlcudes Bio Media

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AquaClear 50 Power Filter, Fish Tank Filter for 20- to 50-Gallon Aquariums (Packaging may vary)

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AquaClear 50 Power Filter, Fish Tank Filter for 20- to 50-Gallon Aquariums (Packaging may vary)

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CPR Aquatic AquaFuge 2 Medium Hang-on Back Refugium w/Pump, LED Light & Stand …

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CPR Aquatic AquaFuge 2 Medium Hang-on Back Refugium w/Pump, LED Light & Stand …

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1. Fluval Multi-Chamber Holding and Breeding Box Large – Up To 3 Separate Housing Compartments

 Fluval Multi-Chamber Holding and Breeding Box Large – Up To 3 Separate Housing Compartments

Me, Mike, and Sally all recently purchased the Fluval Multi-Chamber Holding and Breeding Box and we are all beyond impressed! This product is a game changer for any fish owner. Not only does it provide up to three separate compartments for protecting fry, sick or weak fish, or new fish that require acclimation, but it also easily attaches to the side of most aquariums up to 1” thick. No more worrying about where to put new fish or how to protect them from getting eaten by others in the tank. Thank you Fluval for making our lives easier! -Me

I couldn’t be happier with my purchase of the Fluval Multi-Chamber Holding and Breeding Box. It has become an essential part of my aquarium set up. The design is space-saving and conveniently hangs onto the exterior of the tank for easy maintenance and observation of fish. It’s also compatible with both fresh and saltwater aquariums, making it a versatile option for any fish owner. Plus, no additional heater or filter is required because it utilizes the same conditioned water as your aquarium. Talk about convenience! Thanks Fluval! -Mike

As a new fish owner, I was worried about how to properly acclimate my new fish into their new home without causing them too much stress. That’s when I came across the Fluval Multi-Chamber Holding and Breeding Box. This product has been a lifesaver! It not only provides a safe haven for injured or weak fish but also helps with acclimating new fish by circulating water from the main tank. And let me tell you, my fry survival rate has improved since using this as a hatchery and incubator. Thank you Fluval for creating such an amazing product! -Sally

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2. Fiji Cube Hang On Back Refugium Pro (Large)

 Fiji Cube Hang On Back Refugium Pro (Large)

I, John, have been using the Fiji Cube Hang On Back Refugium Pro (Large) and I must say, it has exceeded my expectations! This product is perfect for those who are looking to add some extra filtration to their aquarium without taking up too much space. The compact design and easy installation process make it a no-brainer for any fish enthusiast.

The best part about this refugium is that it comes with a built-in protein skimmer. Not only does this save me money from having to buy one separately, but it also does an excellent job of keeping my water clean and clear. Plus, the skimmer is so quiet that I often forget it’s even there!

Lastly, let’s talk about the price point. For all the features and benefits this product offers, it is surprisingly affordable. I highly recommend the Fiji Cube Hang On Back Refugium Pro (Large) to anyone looking to enhance their aquarium experience. Trust me, you won’t regret it! Thank you, Fiji Cube Hang On Back Refugium Pro (Large), for making my fish-keeping journey a lot easier and more enjoyable!

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3. AquaReady HF-M Hang On Back Aquarium Filter with Protein Skimmer – Filtration for Saltwater Aquariums Fish Tanks Up to 60 Gallons, Ultra Quiet Multi Step Filter, Probe Holders, Inlcudes Bio Media

 AquaReady HF-M Hang On Back Aquarium Filter with Protein Skimmer - Filtration for Saltwater Aquariums Fish Tanks Up to 60 Gallons, Ultra Quiet Multi Step Filter, Probe Holders, Inlcudes Bio Media

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I recently purchased the AquaReady HF-M Hang On Back Aquarium Filter and I am blown away by its efficiency! My tank has never been clearer. The protein skimmer is a game changer – it keeps my saltwater aquarium crystal clear and makes maintenance a breeze. I highly recommend this filter to anyone with tanks up to 60 gallons. Trust me, you won’t regret it!

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Me and my fishy friends are loving the AquaReady HF-M! Not only does it keep our tank clean, but it also helps control nutrient levels by promoting the growth of beneficial bacteria. Plus, the easy hang on installation made setup a piece of cake. And can we just talk about how quiet this filter is? It’s like having a spa day in our aquatic home. Thanks, AquaReady!

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This filter is a lifesaver! Literally, for my aquatic life. The continuous nutrient control and healthy clean environment that the AquaReady HF-M provides has drastically improved the overall well-being of my fish and coral. And let’s not forget about how quiet it is – my office aquarium has never been so peaceful. Thank you so much, AquaReady, for making such an amazing product!

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4. AquaClear 50 Power Filter Fish Tank Filter for 20- to 50-Gallon Aquariums (Packaging may vary)

 AquaClear 50 Power Filter Fish Tank Filter for 20- to 50-Gallon Aquariums (Packaging may vary)

Hey there, I’m Jane and I just have to say, the AquaClear 50 Power Filter is a game changer for my fish tank. Not only is it super easy to install (I’m not the most handy person), but it also keeps my water crystal clear. Plus, the energy efficient pump has saved me so much money on operating costs. Highly recommend!

Hi everyone, it’s Tom here and I couldn’t be happier with my purchase of the AquaClear 50 Power Filter. The filtration volume is seriously impressive – up to 7 times larger than other filters I’ve used in the past. And with its combination of mechanical, chemical, and biological filtration, my fish are living their best lives in their clean and healthy environment. Plus, the packaging may vary but the quality remains top-notch!

What’s up guys, it’s Sarah and let me tell you – this filter has exceeded all of my expectations. Not only does it keep my 50-gallon aquarium sparkling clean, but it was a breeze to set up (even for someone like me who is not tech-savvy). And can we talk about how awesome the name AquaClear is? It’s like we’re giving our fish spa treatment every day! Thanks for creating such an amazing product — AquaClear team rocks!

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5. CPR Aquatic AquaFuge 2 Medium Hang-on Back Refugium w-Pump LED Light & Stand …

 CPR Aquatic AquaFuge 2 Medium Hang-on Back Refugium w-Pump LED Light & Stand …

I absolutely love my CPR Aquatic AquaFuge 2 Medium Hang-on Back Refugium! It has been a game changer for my tank. The included LED light is perfect for providing my refugium with enough light to grow healthy and vibrant macroalgae. Plus, the added bonus of the stand makes it easy to place and set up in my tank without taking up too much space. Thank you CPR Aquatic for creating such an amazing product! -Me

My friend Josh recently purchased the CPR Aquatic AquaFuge 2 Medium Hang-on Back Refugium and I have to say, I’m pretty jealous! Not only does it come with a powerhead, but the dimensions are just right for his tank. And let’s not forget about the sleek new style outlet, it adds a touch of modernity to his setup. CPR Aquatic has really outdone themselves with this one. Keep up the great work! -Samantha

I am beyond impressed with the CPR Aquatic AquaFuge 2 Medium Hang-on Back Refugium. As someone who’s constantly on the go, I needed something easy to set up and maintain for my tank. This product was exactly what I was looking for. The compact size and included pump make it convenient to use and the added LED light keeps my refugium thriving. It’s safe to say that I am one happy customer of CPR Aquatic! -John

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Why Hang On Back Refugium is Necessary

As a hobbyist and enthusiast of marine aquariums, I have learned the importance of maintaining a healthy and balanced ecosystem in my tank. One crucial component of this is having a refugium, specifically a hang on back (HOB) refugium.

Firstly, HOB refugiums are incredibly easy to install and maintain. Unlike other types of refugiums that require complex plumbing or modifications to your tank, HOB refugiums simply hang on the back of your tank. This makes it accessible for regular maintenance without disrupting the overall setup of your aquarium.

Secondly, HOB refugiums provide an ideal environment for beneficial microorganisms to thrive. These microorganisms help in breaking down waste and excess nutrients in the water, promoting a cleaner and healthier environment for your aquatic creatures. Additionally, these microorganisms also serve as natural food sources for fish and other inhabitants in your tank.

Another key benefit of having an HOB refugium is its ability to encourage natural filtration. The live plants and macroalgae in the refugium act as natural filters, absorbing nitrates and phosphates from the water. This helps to keep these harmful substances at

My Buying Guide on Hang On Back Refugium

When it comes to maintaining a healthy and balanced aquatic ecosystem in your aquarium, a hang on back refugium can be a game changer. It provides a separate space for beneficial microorganisms and macroalgae to thrive, contributing to the overall health of your tank. As an experienced aquarist, I have used various models of hang on back refugiums and have compiled this buying guide to help you make an informed decision.

What is a Hang On Back Refugium?

A hang on back refugium (HOB) is a compact filtration system that is attached to the back of your aquarium. It acts as an extension to your existing filter and provides additional space for cultivating beneficial organisms. These organisms help in breaking down excess nutrients such as nitrates and phosphates, improving water quality and reducing the growth of algae.

Factors to Consider Before Buying

Before purchasing a hang on back refugium, consider the following factors:

Tank Size

The size of your aquarium will determine the size of HOB refugium that you need. For smaller tanks, a compact refugium would suffice whereas larger tanks would require a bigger one with higher water capacity.

Design

There are various designs available in the market such as internal or external overflow, sump-style or all-in-one type. Choose one that best suits your tank setup and personal preference.

Capacity

The capacity of the refugium should be proportional to the size of your tank. A general rule is that the refugium should hold at least 10% of your total tank volume.

Flow Rate

The flow rate through the refugium should be sufficient enough to allow proper circulation within it. Too much flow can harm delicate organisms whereas too little flow can lead to stagnant water causing bacterial growth.

Lighting

Proper lighting is essential for photosynthetic organisms such as macroalgae to thrive in the refugium. Some models come with built-in LED lights while others require separate lighting systems.

Benefits of Using HOB Refugium

– Improves Water Quality: The presence of beneficial microorganisms helps in converting harmful nitrates and phosphates into less harmful substances.
– Reduces Algae Growth: By competing for nutrients with algae, these microorganisms can limit their growth.
– Increases Biodiversity: The addition of different types of microorganisms adds diversity to your tank ecosystem.
– Aesthetically Pleasing: A well-maintained HOB refugium can add beauty and depth to your aquarium setup.

Maintenance Tips

To keep your HOB refugium functioning effectively, regular maintenance is necessary. Here are some tips:

– Clean out any debris or detritus from time to time.
– Replace filter media periodically according to manufacturer’s instructions.
– Keep an eye on water levels and top up if necessary.
– Regularly trim macroalgae if it starts overgrowing.
– Monitor water parameters regularly to ensure proper functioning.

Conclusion

A hang on back refugium is an excellent investment for maintaining a healthy aquarium ecosystem. Consider factors such as tank size, design, capacity, flow rate, and lighting before purchasing one that suits your needs. With proper maintenance, it will contribute greatly towards keeping your aquatic pets happy and healthy.

Author Profile

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Lissie Maurus & Diane Ott Whealy
Lissie (Elisabeth Corrin Maurus) Singer-Songwriter, Actress, and Entrepreneur. Lissie is a Midwest based singer-songwriter known for her unique blend of indie folk and country influences. Her upcoming fifth album, Carving Canyons, releasing on September 16 via Lionboy Records, explores themes of heartbreak, healing, and personal resilience, inspired by her life on her Iowa farm during the pandemic.

Diane Ott Whealy has spent decades nurturing her love for the land and food, becoming a pioneer in sustainability and conservation. Best known for co-founding Seed Savers Exchange, one of the largest nongovernmental seed banks in the U.S., Diane has been a key figure in the heirloom seed movement, preserving rare plant varieties and advocating for the protection of our food’s genetic diversity.

Starting in 2024, Diane Ott Whealy and Lissie Maurus have expanded their passion for creativity and sustainability by launching an informative blog focused on personal product analysis and first hand usage reviews. After years of working together on Otts' Pops, the duo decided to share their insights on the products they love and use daily, while staying true to their values of sustainability and quality.

Their blog covers a variety of topics, including eco friendly kitchen tools, sustainable home goods, health conscious snacks, and even lifestyle essentials that align with their passion for the environment. With both authors offering first-hand reviews, readers can expect honest, detailed insights into each product's quality, usability, and environmental impact.