Octo BioChurn 90INT Biopellet Reactor
SKU: OCT-BC90I
MSRP: $ 277,19
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Available Through Authorized Retailer
• Patent-pending churn plate creates a cyclone motion for superior media fluidization
• Integrated Aquatrance 800 pump provides consistent flow in a compact footprint
• Versatile mounting with included hang-on-bracket for rimmed or rimless sumps
• 400ml media capacity optimized for aquariums up to 100 gallons
• Ideal For: Small reef tanks; space-constrained sumps; hobbyists using biopellets
Reef Octopus
Globally trusted for premium protein skimmers and pumps, engineered in-house for unmatched reef filtration performance.
Reef Octopus BioChurn 90INT Reactor with HOB Bracket
The Reef Octopus BioChurn 90INT Reactor offers a high-performance solution for biological nutrient export in smaller marine systems. Utilizing a specialized patent-pending churn plate, this reactor generates a unique cyclone motion that keeps biopellet media in constant suspension. This motion prevents the common issue of media clumping and ensures that every pellet is fully utilized by beneficial bacteria to break down nitrates and phosphates.
What sets the Reef Octopus BioChurn 90INT apart is its mounting versatility. While designed for internal in-sump use, it includes a robust hang-on-back (HOB) bracket that allows it to be secured to the side of a sump or aquarium, freeing up floor space for other equipment. Powered by the energy-efficient Aquatrance 800 pump, this reactor provides the perfect balance of flow and fluidization for tanks up to 100 gallons.
Key Features
• Cyclone Fluidization: The patent-pending dispersant plate ensures pellets "churn" evenly rather than just tumbling, maximizing bacterial contact. • Integrated HOB Bracket: Includes a versatile mounting bracket compatible with various sump and tank rim thicknesses. • Aquatrance 800 Pump: Comes standard with a reliable, low-heat pump designed specifically for aquarium filtration. • Compact Design: The 3.5-inch body diameter makes it one of the most space-efficient biopellet reactors available. • Easy Maintenance: The top-entry design and secure sieve plates allow for quick media refills and cleaning. • High-Quality Acrylic: Precision-engineered from solid, cell-cast acrylic for maximum durability and clarity.
Ideal For
• Small to medium reef aquariums (up to 100 gallons) struggling with elevated nitrate levels.
• Hobbyists with very limited sump space who need to utilize hang-on mounting options.
• Advanced nano-reef keepers looking for a stable, automated carbon-dosing solution.
• Aquarists transitioning from high-maintenance GFO or carbon reactors to biopellets.
• Systems requiring precise phosphate management for sensitive LPS or SPS corals.
What's Included:
• BioChurn 90INT Reactor Body
• Aquatrance 800 Pump
• Hang-on-Back Mounting Bracket
• Internal Churn Plate and Assembly
• Upper Sieve and Containment Lid
Specifications:
• Body Diameter: 3.5 in (90 mm)
• Footprint: 5.5 in x 4.5 in
• Total Height: 14.4 in
• Max Capacity: 400 ml
• Recommended Tank Size: Up to 100 gal
• Pump Model: Aquatrance AQ-800
• Power Consumption: 10 Watts
• Warranty: 1-year on reactor body; 5-year on pump]
WARRANTY
CoralVue, Inc. and Reef Octopus hereby guarantee this product to be free from defects in material and workmanship for a period of:
- Five (5) year warranty on pump body/housing
- Three (3) year warranty on Reef Octopus-branded controller
- One (1) year warranty on Power Supply, Impeller (and components), Rotor, Rear Bushing, and Gaskets
Warranty is activated on the date of purchase.
This Standard Limited Warranty applies and is limited as follows:
- To the product only as long as it remains in the possession of the original purchaser.
- To the product that has not been subject to accident, misuse or abuse.
- To the product that has not been modified, altered, defaced, or had repairs made or attempted by other than CoralVue, Inc.
- That CoralVue be immediately notified in writing within ten (10) days of first knowledge of defect by owner or his agent.
- That CoralVue, Inc. shall be given first opportunity to make any repairs, replacements or corrections to the defective construction within a reasonable period of time.
- Under no circumstances shall CoralVue and/or the Manufacturer be liable by virtue of this warranty or otherwise for damage to any person or property whatsoever for any special, indirect, secondary or consequential damages of any nature however arising out of the use or inability to use because of the product defect.
Ensure the reactor is clean and all O-rings are lubricated with silicone grease if necessary.
Fill the reactor with up to 400ml of your chosen biopellet media; do not overfill, as space is needed for the churn motion.
Attach the HOB bracket to the reactor body and secure it to your sump wall.
Verify the Aquatrance 800 pump is firmly connected to the intake.
Submerge the pump and plug it in; ensure the pellets begin a steady circular "churning" motion.
Monitor nutrient levels over the first month and adjust media volume as needed.
Pro Tips
Use the HOB bracket to elevate the reactor out of detritus zones. In small sumps, debris can collect on the floor. Using the mounting bracket to hang the reactor keeps the pump intake in cleaner water, extending the life of the impeller.
Slowly introduce biopellets to avoid a bacterial bloom. When starting a new reactor on an established tank, start with 25% of the recommended media. Adding too much carbon at once can cause a "white cloud" bacterial bloom that depletes oxygen.
Ensure the output is directed toward a high-flow area. Directing the reactor's effluent toward your skimmer or a high-flow return area ensures the oxygen-depleted water is quickly re-oxygenated, and bacterial film is removed.