Mighty Aquarium Filter HOB
Product Overview
The Mighty Aquarium Filter HOB is a compact, hang-on-back filtration system available in five distinct sizes engineered for freshwater tanks ranging from 1 to 24 gallons. Designed for quick rim mounting and sleek functionality, this hang-on-back unit delivers clear, oxygen-rich water while keeping operational noise to an absolute minimum. It is the ultimate plug-and-play filter for aquariums, offering beginner-friendly maintenance, an integrated leveling knob, and adjustable flow control for nano aquascapes, betta setups, and micro reef systems.
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Key Features & Benefits
- Beginner-Friendly Rim Installation: Easily hangs directly onto the glass rim of rimless or traditional nano tanks for immediate, hassle-free operation.
- Integrated Leveling Knob: Built-in stabilizer dial ensures the filter unit sits perfectly flush against the glass to optimize motor balance and eliminate unwanted vibration noise.
- Adjustable Flow Control: Dial in the precise flow rate to create gentle surface movement suitable for delicate bettas and dwarf shrimp or higher turnover for planted and marine setups.
- Self-Priming Design: Motor restarts smoothly without manual priming headaches after routine water changes or brief power interruptions.
- Preloaded & Extra Replacement Media Included: Comes ready to plug in out of the box with initial filtration media plus a full extra replacement set. We recommend purchasing replacement sponges and cartridges for the Mighty Aquarium Filter series to maintain peak biological efficiency!
- Five Scalable Sizes: Custom-fit options range from micro XS models for 1-gallon pico tanks up to high-capacity XL models for 24-gallon rimless layouts.
Technical Specifications
Always verify rim thickness and filter clearances behind your tank before final installation.
| Model | Dimensions | Max Flow Rate | Power | Tank Size Compatibility | Recommended UNS Tank |
|---|---|---|---|---|---|
| XS (MG02) | 3.27 x 3.15 x 4.33" | 15.86 GPH | 4W (AC110-120V / 60Hz) | 1–3 Gallons | UNS 20C |
| S (MG04) | 4.01 x 3.31 x 4.57" | 31.07 GPH | 4W (AC110-120V / 60Hz) | 2–5 Gallons | UNS 3N |
| M (MG08) | 5.00 x 3.78 x 5.20" | 63.40 GPH | 4.5W (AC110-120V / 60Hz) | 4–10 Gallons | UNS 30C |
| L (MG12) | 5.71 x 4.33 x 5.71" | 120.00 GPH | 4W (AC110-120V / 60Hz) | 10–16 Gallons | UNS 45U |
| XL (MG20) | 7.44 x 5.20 x 7.13" | 170.00 GPH | 6W (AC110-120V / 60Hz) | 15–24 Gallons | UNS 60U |
What's Included
- 1x Mighty Aquarium Hang-On-Back Filter (Preloaded with filter media for initial use)
- 1x Additional Replacement Filter Media Set
- 1x Integrated Tank Leveling Knob
Frequently Asked Questions
1. How do I choose the best aquarium filter size for my nano tank?
A reliable rule of thumb for selecting a filter for aquariums is aiming for a turnover rate of 4 to 5 times your total tank volume per hour. For instance, a 5-gallon nano aquarium performs best with a small or medium HOB filter operating between 25 to 50 GPH to maintain mechanical filtration and water polishing without overwhelming small nano fish.
2. Why is my HOB filter making a rattling noise, and how do I fix it?
Vibration against the tank rim is the primary cause of noise in hang-on-back filters. Rotating the integrated leveling knob at the bottom back of the filter body until the unit sits completely vertical and flush against the glass dampens operational vibration and restores whisper-quiet performance.
3. How can I make my HOB filter intake safe for baby shrimp and fry?
Slipping a high-density pre-filter sponge or mesh guard over the intake tube prevents tiny dwarf shrimp, fry, or small snails from getting pulled into the impeller housing. This simple addition keeps delicate livestock safe while capturing large debris before it clogs your internal cartridge media.
4. How often should I replace or rinse my HOB filter media?
To preserve your beneficial bacteria colonies, rinse mechanical sponge inserts gently in squeezed-out aquarium water during routine water changes rather than using chlorinated tap water. Replace clogged filter cartridges every 3 to 4 weeks to ensure peak water clarity and prevent restricted intake flow.
