Mighty Aquarium Filter - HOB Filter

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The Mighty Aquarium Filter series features 5 sizes to accommodate a range of aquarium sizes. Hang on back filters, commonly abbreviated to HOB, are a classic method for providing essential filtration to the aquarium. Easy to install and use, HOB filters are a fantastic choice for beginner hobbyists or for those who are interested in easy accessibility. These compact filters are budget-friendly and hang directly on the rim of the aquarium. The Might Aquarium Filter HOB features leveling knobs to ensure a secure fit and adjustable flow. We recommend HOB filters for shrimp tanks, Betta tanks, nano tanks and other aquarium setups that would do better with gentle flow. The Mighty Aquarium Filter comes with everything needed to get started - Each model is preloaded with matching media for initial use and includes one replacement set. We recommend purchasing extra replacement media to ensure a quick and easy refresh when needed.

What we like about the Mighty Aquarium HOB Filter

Beginner-Friendly: HOB, aka hang on back, filters are a top pick for beginner hobbyists due to ease of use and simple design. This type of filter is commonly used for nano aquariums, breeding projects or aquariums that require a gentler flow.
Quick Installation: HOB filters are easy to install and can be quickly secured to the rim of the desired aquarium. The Mighty Aquarium HOB filter includes a leveling knob that ensures the filter unit stays upright. This added stability improves flow and allows for optimal performance.
Easy Maintenance: Hang on back filters are easy to maintain and clean. When compared to canister filters, HOB filters can be easily dismantled and thoroughly cleaned. Like other aquarium filters, the included media (sponge or cartridge) should be cleaned regularly and periodically replaced. Click here to purchase replacement media!

Mighty Aquarium Filter HOB Hang On Back Nano Aquarium Tank Filter

Clear Smoke
Includes: Intake tube, intake sponge, and filter media

Model Specifications

Model Dimensions (IN) Max Flow Rate (GALLONS PER HOUR) Tank Recommendations

3.27 x 3.15 x 4.33
Ultum Nature Systems 20C
4.01 x 3.31 x  4.57 31.07
Ultum Nature Systems 3N

Ultum Nature Systems 60L

Ultum Nature Systems 25C

Ultum Nature Systems 5N
MG08 M 5 x 3.78 x 5.20 63.40
Ultum Nature Systems 90LS

Ultum Nature Systems 30C

Ultum Nature Systems 45S
5.71 x 4.33 x 5.7
Ultum Nature Systems 45U
7.44 x 5.20 x 7.13
Ultum Nature Systems 60U

Additional Specifications XS MG-02:
- Power: 4W
- Power Consumption: AC110-120V / 60Hz
- Usage: 1-3GAL

Additional Specifications S MG-04:
- Power: 4W
- Power Consumption: AC110-120V / 60Hz
- Usage: 2-5GAL

Additional Specifications M MG-08:
- Power: 4.5W
- Power Consumption: AC110-120V / 60Hz
- Usage: 4-10GAL

Shipping, Returns and Refunds
Live plants are shipped Monday - Friday for all west coast orders. For all remaining states, live plants will only be shipped Monday through Wednesday and Friday to ensure they arrive at your doorstep 100% healthy.

Rimless aquariums will be shipped throughout the week via UPS or Fedex Ground. For more information, please visit our FAQ page.

Hard goods can be returned up to 14 days after receipt of purchase. Buyer is responsible for return shipping.

Due to its nature, we are unable to accept returns for live plants. In the unlikely event you are unsatisfied in any way, please contact us ASAP. We provide 100% DOA (Dead On Arrival) protection.

To be eligible for a refund/store credit, please contact us within 12 hours of receiving it and provide a photo of the item in its original packaging.

No worries, we’ll take care of everything as long as it fits the guidelines above.

Most answers to general questions can be found on our FAQ page.
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