Bullet-1 Hang-On-Back Protein Skimmer

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Discontinued by Bulk Reef Supply
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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)
  • Fits on Rims up to 3/4" Thick

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

More Information
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
Max Tank Thickness 3/4 in.
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
Pump Included Yes
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Product Questions

Where can I purchase a sponge replacement? I see the screw replacement but not the sponge. Mine came with a blue sponge and I really want a black sponge a pictured in listing. Plus I like to keep extras on hand in case needed. Thank you.
Question by: Deborah Marshall on Mar 22, 2024, 12:41 PM
We no longer carry Aquamaxx products and are not certain where replacement sponges can be purchased.
Answer by: Scott F. (BRS Staff) on May 9, 2024, 10:23 AM
Hi, I hope this isn’t a bad question. But I’m hoping to set up an Ozone generator. (Enlay Ozone) Would this be compatible with an ozone intake tube?
Question by: Brock on Feb 5, 2024, 7:11 PM
No, this unfortunately would not be compatible with an ozone intake tube.
Answer by: Laura (BRS Staff) on Feb 6, 2024, 9:18 AM

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