Bullet-1 Hang-On-Back Protein Skimmer

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AquaMaxx Bullet-1 Hang-On-Back Protein Skimmer

AquaMaxx`s Bullet HOB Skimmer was designed to deliver high performance in small spaces. Unlike traditional hang-on-back skimmers which can be a large eyesore for your aquarium, the Bullet`s modern design can efficiently filter nano tanks up to 30 gallons with a footprint just the size of an index card!

AquaMaxx protein skimmers were designed from the ground up with the hobbyist in mind. The AquaMaxx Bullet HOB protein skimmer features an advanced internal flow design to efficiently mix air and water, extracting the maximum amount of protein. Noise is minimized by the built-in air silencer and silicone noise dampeners, and the skimmer`s smooth, bullet-shaped body and transparent chamber allow for easy cleaning and maintenance. High-quality cell-cast acrylic is used throughout the build for maximum durability, precisely assembled by experienced craftsmen to produce a top-notch product at a very affordable price.

The Bullet HOB features a high-performance SHARK Nano pump: an enhanced Italian-made Sicce pump. Each Sicce pump motor block is modified and fitted with proprietary AquaMaxx needle wheel impellers, which boosts performance much beyond that of a stock pump. The upgraded AquaMaxx SHARK pump is capable of drawing in and chopping up significantly more air, providing the optimum bubble size for protein extraction. Accumulated protein and organics will be vigorously removed from your tank so that you can focus less on maintenance and more on enjoying your piece of the reef.


  • Designed for nano aquariums up to 30 gallons
  • High-performance Sicce SHARK Nano needlewheel pump
  • Easy maintenance and cleaning
  • Simple to set up and operate
  • Ultra quiet operation
  • Compact footprint
  • Durable cell-cast acrylic construction


  • Footprint: 4.9" x 3.1"
  • Height: 11.4"
  • Pump: Sicce SHARK Nano
  • Pump Power Consumption: 2.8 Watts
  • Minimum Tank Height: 8.5"
  • Filtration Rating: Up to 30 Gallons (light bioload) or  20 Gallons (heavy bioload)

*Requires Approx. 8" of clearance to remove collection cup


No sump, no space? No problem! These hang on back skimmers are the perfect solution for any aquarium. Proven and reliable, these hang on back skimmers continue
to impress with their high quality Italian made pumps. They are by far MD`s top sellers and for good reason, they skim well and are easy to clean.




Bullet-1 HOB

Footprint (In.) 7.5" x 3.5" 17.25" x 3.94" 8.75" x 5.5" 4.9" x 3.1"
Height (In.) 17" 14.18" 20" 11.4"
Motor Shark 1.0* Shark 1.0* Shark 1.5* Shark Nano*
Gallon Rating Light Bio-Load: Up to 75g Up to 60g Up to 175g Up to 30g
Medium Bio-Load: ~60g ~40g ~130g ~25g
Heavy Bio-Load: Up to 40g Up to 20g Up to 90g Up to 20g


Built small and tough as their full-size counterparts. Equipped with Italian made pumps, they skim the heck out of nano aquariums and are quiet. They`re definitely not
toy skimmers.



Bullet-1 HOB

Footprint (In.) 2.76" x 4.15" 5.9" x 3.2" 4.9" x 3.1"
Height (In.) 13.39" 14" 11.4"
Motor Shark Nano* Shark 1.0* Shark Nano*
Gallon Rating Light Bio-Load: Up to 30g Up to 65g Up to 30g
Medium Bio-Load: ~25g ~50g ~25g
Heavy Bio-Load: Up to 20g Up to 30g Up to 20g

*Denotes Modified Italian-made Sicce Syncra pump

More Information
SKU 232628
UPC 651137770962
Manuals Instruction Manual
Skimmer Type Hang On Back, Nano
Capacity Light Bioload - Up to 30 Gallons Medium Bioload - Up to 25 Gallons
Heavy Bioload - Up to 20 Gallons
Dimensions 4.9"L x 3.1"W x 11.4"H
Pump Model Sicce SHARK Nano (modified and upgraded Sicce Syncra pump)
Pump Rotor Type Needlewheel
Variable Speed No
Power Type AC
Power Consumption 2.8 Watts
Additional Notes Requires a minimum tank height of 8.5"
Requires Approx. 8" of clearance to remove collection cup
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Product Questions


How wide is the part if the skimmer that goes in the actual tank. I have limited space and want to see if it will fit i have about 3 3/4 inch to fit. Will this fit?
Question by: Adam on Oct 26, 2022, 5:00 PM
Hello Adam, Great question. Just measured one we had in house and the portion that extends into the actual tank is 2.5". Please let me know if there is anything else I can assist you with!
Answer by: Ash(BRS Staff) on Nov 9, 2022, 12:07 PM
Hello. Would this Bullet-1 Hang-On-Back Protein Skimmer works on aqueon 33 gallon rimmed long aquarium?
Question by: Ling on Oct 13, 2022, 8:59 PM
Thanks for the question! I'm not sure how thick the rims are on tanks as we don't carry any, however, this skimmer is compatible with a rim/glass thickness of up to 3/4". Please let us know if we can help with anything else!

Answer by: Kyle Thomas (BRS Staff) on Oct 14, 2022, 1:31 PM
The new. Nano skimmer from aqua maxx says it’s good up to 30 gal will it work with 32 gal bio cube
Question by: Peter Ippolito on Jul 21, 2022, 11:43 AM
This unfortunately would not work on a biocube 32g as this skimmer is a hang on skimmer, and the biocube's overflow compartment is closed off on the top of the unit.
Answer by: Adam Malik (BRS Staff) on Jul 21, 2022, 4:26 PM