The Aquarium HOB waterfall filter provides hospital-grade water purification with a stunning visual effect for your freshwater tank. First of all, this powerful system perfectly suits tanks ranging from 70L to 120L (18-32 Gal). Since it guarantees a thriving environment without cluttering your glass, it stands as the gold standard in modern aquarium filter solutions.
Why This HOB Waterfall Filter Is Essential for Your Tank
Are you tired of bulky, noisy filters that ruin your planted tank’s aesthetic? Fortunately, the RLD series system delivers pure water and absolute peace of mind. By combining a sleek profile with heavy-duty mechanical separation, this hang on back filter clears your water column without taking up valuable space inside your aquascape.
Native 35dB Silent Technology Inside This Quiet Aquarium Filter
Powered by a premium full-copper motor and advanced vibration-dampening feet, this setup runs incredibly smoothly. As a result, at just 35dB, this reliable waterfall aquarium filter operates as quietly as a library whisper, making it strictly perfect for bedrooms and living rooms.
Integrated Surface Skimmer for the Best Filter Experience
Furthermore, it features a highly efficient self-adjusting surface oil remover. Consequently, your HOB filter with skimmer effortlessly collects surface oils, organic films, and floating debris. This immediately ensures perfect light penetration for your sensitive aquatic plants and maximizes oxygen exchange at the water surface.
Modular and Scalable Media Chamber
Most importantly, the customizable filter chamber allows you to arrange filter cotton, activated carbon, or ceramic rings exactly how you want them. In addition, you can easily clean or upgrade the media inside this quiet aquarium filter without ever messing up your aquascape or disturbing your fish. Indeed, maintaining a pristine environment has never been simpler with this reliable HOB waterfall filter.
Pro Tip: Optimize Your Setup
Want to make aquarium maintenance even easier? For example, you should clean the custom filter plates every 2 weeks to maintain an optimal flow rate. By doing so, your hang on back filter will ensure a long life for its motor core and keep your water crystal clear. Therefore, routine care directly prevents unexpected performance drops.
Technical Specifications
Review the specifications of our waterfall aquarium filter below to find the perfect match for your specific tank size and water volume.
- Flow Rates: 400L/H to 600L/H (106-158 GPH) for this powerful waterfall aquarium filter.
- Tank Sizes: Fits 70L to 120L (18-32 Gal) planted setups needing a quiet aquarium filter.
- Noise Level: <35dB Native silent operation from your HOB waterfall filter.
- Included: HOB filter with skimmer unit, modular media, and extension pipes.
| Model | Power | Flow Rate | Filter Size (L×W×H) | Best For |
| RLD-101 | 3W | 280L/H (74 GPH) | 13×8.5×16cm （5.12 × 3.35 × 6.30 in） | 5-20Gal Small Tanks using a hang on back filter |
| RLD-102 | 3W | 280L/H (74 GPH) | 17.5×8.5×16cm （6.89 × 3.35 × 6.30 in） | 20-30Gal Tanks needing a quiet aquarium filter |
| RLD-103 | 5W | 320L/H (85 GPH) | 22.5×8.5×16cm （8.86 × 3.35 × 6.30 in） | 30-40Gal Planted Tanks using a waterfall aquarium filter |
| RLD-104 | 5W | 320L/H (85 GPH) | 28×8.5×16cm （11.02 × 3.35 × 6.30 in） | 40-55Gal Medium Tanks requiring a HOB filter with skimmer |
Note: Every HOB waterfall filter listed above includes the adjustable skimmer attachments.
Need Help Choosing?
Whether you are worried about the water flow rate being too strong for your Bettas, or not sure which model perfectly fits your rimmed tank, we are here to help! Specifically, please reach out to our expert support team directly through our Contact Us page. Alternatively, if you run a massive canister setup instead of a nano tank, check out our flagship magnetic fish toilet for heavy waste management. A reliable hang on back filter is key to your success.
Pro-Tip for HOB Filters:
Because waterfall filters create a strong surface current, floating fish flakes often get sucked into the filter intake before your fish can eat them. Ultimately, we highly recommend pairing this quiet aquarium filter with our Aquarium Feeding Ring or Acrylic Feeding Tube to keep food perfectly contained. Check out our “Clean Nano Tank Companion” bundle deal at the top of this page to add them to your order and instantly get an exclusive discount on these extra accessories!
Brianna R. –
Zero vibration hum on my nightstand tank. Crystal clear water and effortless plug-and-play setup!
Michael Rodriguez –
Great build quality with plenty of room in the media chamber for custom biomedia. Restarted seamlessly after my weekly water change without losing siphon. The waterfall output is easily dialed back for gentler flow, though I recommend adding a pre-filter intake sponge if you keep dwarf shrimp. Water clarity is top-tier.
Eric –
Solid HOB filter. The intake tube has a good diameter so it doesn’t clog easily and keeps the flow rate high. It runs incredibly quiet once you prime it properly. Very happy with the purchase.
Yolanda Henson –
The 35dB silent technology and surface skimmer on this quiet aquarium filter are truly impressive. My main gripe is that with a heavily stocked tank, especially with cichlids, the filter cotton needs cleaning almost weekly to prevent filter clogging and a noticeable flow rate drop. While the modular media chamber is great, the frequent maintenance on the filter media is still a bit tedious. It does keep the water clear though.
Lori –
Finally, a hang on back filter that delivers! No more bulky, noisy eyesores. This system’s heavy-duty mechanical separation clears the water column perfectly, and it’s virtually invisible from inside the tank. Ideal for a thriving planted environment without cluttering the glass.
Kevin –
Super quiet and works perfectly. Arrived in 8 days!
Brenda King –
Stunning visual and crystal-clear water! This HOB waterfall filter instantly upgraded my tank’s look and banished water clarity issues.
Angela Smith –
This RLD series HOB waterfall filter is a game-changer! My bedroom tank is finally silent thanks to its 35dB technology; no more annoying hum. The integrated surface skimmer also banished that greasy film, improving light penetration for my plants. Plus, the modular media chamber lets me customize filtration for my pleco’s waste, avoiding frequent filter clogging. Highly recommend this quiet aquarium filter!
Sarah Duncan –
Upgraded from a clunky internal filter on my 20-gallon planted tank. The built-in skimmer swallowed the stubborn protein film within an hour, noticeably boosting light penetration for my carpet plants. I packed the chamber with coarse sponge and porous ceramic rings—zero water bypass and it runs dead silent next to my workspace.
Susan G. –
Overall, this hang on back filter is excellent for my 90L tank. It keeps the water crystal clear, and the custom filter plates are so easy to clean, preventing flow rate drop. I just wish the intake strainer was a bit bigger, but it’s a minor detail. Much better than internal filters for maintaining pristine water!