Product Overview
The Reef Octopus BH-1000 is a unique hang-on-back (HOB) protein skimmer designed for aquariums up to 100 gallons. Its innovative design features an external pump mounted beneath the skimmer body, which minimizes the space required behind the aquarium. This external placement also prevents heat transfer to the aquarium water, helping to maintain stable water temperatures. The design further facilitates easy removal of the pump for routine cleaning and maintenance.
This protein skimmer is constructed from high-quality acrylic, ensuring durability and efficient operation in marine aquarium environments. It is engineered to effectively remove organic waste from the water column, contributing to cleaner and healthier aquatic conditions.

Image: The Reef Octopus BH-1000 protein skimmer, showcasing its clear acrylic body and external pump design.
Setup Instructions
- Unpacking and Inspection: Carefully remove all components from the packaging. Inspect all parts for any signs of damage. Ensure all components listed in the product manual are present.
- Component Assembly:
- Connect the external pump to the skimmer body. Ensure all connections are secure to prevent leaks.
- Attach the intake and output pipes to their respective ports on the skimmer.
- Secure the collection cup to the top of the skimmer body. Ensure it is firmly seated to prevent accidental dislodgement during operation or cleaning.
- Placement: Hang the skimmer securely on the back of your aquarium. Ensure it is stable and level. The external pump should be positioned directly below the skimmer body.
- Initial Water Level Adjustment: Before powering on, ensure the skimmer's internal water level is appropriate for your aquarium's water height. Adjust the skimmer's position or internal components as needed to achieve optimal water flow and bubble production.

Image: The Reef Octopus BH-1000 skimmer with "Classic BH-1000" text, illustrating its compact design when installed.

Image: A technical diagram showing the dimensions and suggested cup heights for the Reef Octopus BH-1000 skimmer, aiding in proper installation and fit.
Operating Instructions
- Priming the Pump: Before plugging in the pump, ensure it is fully submerged or filled with water to prevent dry running. This may require manually filling the pump chamber or ensuring the skimmer is properly seated and water flows into the pump.
- Power On: Once primed, connect the pump to a power outlet. The skimmer will begin to draw water and produce bubbles.
- Break-in Period (Seasoning): A new protein skimmer typically requires a break-in period, also known as seasoning, which can last from a few days to a couple of weeks. During this time, the skimmer's performance may be inconsistent, producing clear or very light skimmate. This is normal as the acrylic surfaces develop a biofilm.
- Adjusting Skimmate Production:
- Adjust the air inlet valve (if present) to control the amount of air drawn into the skimmer. Opening it wider generally increases bubble production.
- Adjust the height of the collection cup or the skimmer's internal water level to control the consistency of the skimmate. For darker, thicker skimmate, lower the cup or raise the water level. For lighter, wetter skimmate, raise the cup or lower the water level.
- During initial startup or after cleaning, it is advisable to leave the collection cup off until the skimmer stabilizes and bubble production is consistent. Then, reattach the cup and make final adjustments.
- Continuous Operation: For optimal water quality, the protein skimmer should operate continuously.
Maintenance
Regular maintenance is crucial for the efficient and long-term operation of your protein skimmer.
- Collection Cup Cleaning: The collection cup should be emptied and cleaned regularly, typically every few days or as needed, depending on the amount of organic waste produced by your aquarium. Simply remove the cup, discard the skimmate, and rinse the cup with fresh water.
- Skimmer Body and Pump Cleaning: Periodically, the entire skimmer body and pump should be disassembled and thoroughly cleaned to remove any accumulated algae, detritus, or mineral deposits. The external pump design allows for easy removal for this purpose. Pay close attention to the impeller and its housing, as blockages here can significantly reduce performance.
- Air Inlet Maintenance: Ensure the air inlet and any associated tubing are free from blockages or salt creep, which can restrict airflow and reduce skimming efficiency.
Troubleshooting
| Problem | Possible Cause | Solution |
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| Skimmer not producing skimmate or very little skimmate. |
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| Skimmer overflowing or producing excessive wet skimmate. |
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| Leaking from connections. |
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| Excessive noise. |
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Specifications
| Feature | Detail |
|---|---|
| Brand | Reef Octopus |
| Model Name | OCTO Classic Protein Skimmer 1000-HOB |
| Product Dimensions (L x W x H) | 17"L x 3.5"W x 17"H |
| Material | Acrylic |
| Color | Black (referring to pump/accents, main body is clear) |
| Item Weight | 0.32 ounces (Note: This seems unusually low for the product, likely a data entry error in source. Actual shipping weight is 9.07g or 0.32oz, but the product itself is heavier.) |
| Power Source | Corded Electric |
| Maximum Flow Rate | 350 Liters Per Hour |
| Voltage | 230 Volts (AC) |
| Specific Uses For Product | Indoor Aquarium Filtration |
| Target Audience | Mollusks, Crustaceans, Fish (Aquarium use) |
| Age Range Description | All Life Stages (for aquatic life) |
| Date First Available | August 1, 2011 |
Warranty and Support
This product comes with a Manufacturer Warranty. To claim warranty service, please retain your receipt of purchase. The manufacturer warranty is typically honored with proof of purchase.
For specific warranty terms, duration, and support inquiries, please refer to the documentation included with your product or contact the manufacturer directly. While this manual provides general guidance, detailed support may be available through the manufacturer's official channels.





