Reef Octopus BioChurn 90INT Reactor with HOB Bracket

Reef Octopus BioChurn 90INT Reactor with HOB Bracket for Smaller, Compact Reef Systems

The Reef Octopus BioChurn 90INT Reactor with HOB Bracket delivers controlled biopellet fluidization for reef aquariums up to 100 gallons. Created by Reef Octopus, this in-sump system focuses on stable media suspension without harsh direct flow. As nutrient levels fluctuate in smaller systems, controlled pellet motion becomes increasingly important. Therefore, balanced churn flow helps maintain consistent nitrate and phosphate reduction.

Reef Octopus BioChurn 90INT Reactor Designed for Efficient In-Sump Installation

Unlike bigger Reactors, the 90INT keeps its footprint compact at 8.66 inches by 4.52 inches. With a 4-inch body diameter and 14.6-inch height, it fits comfortably in most sump chambers. The included HOB bracket provides additional mounting flexibility when sump space runs tight. Consequently, placement remains straightforward in a wide range of setups.

The Aquatrance AQ-800 feed pump powers both water delivery and internal pellet suspension. This integrated approach simplifies plumbing while maintaining steady flow control.

Cyclone Churn Motion in the Reef Octopus BioChurn 90INT Biopellet Reactor

The patent-pending churn plate generates a controlled cyclone-style motion within the chamber. Instead of blasting pellets with aggressive pressure, the system keeps media evenly suspended. As a result, pellets maintain extended contact time with nutrient-rich aquarium water.

The cascading internal design increases surface area for bacterial colonization. Meanwhile, the delicate churn pattern reduces clumping and channeling compared to conventional fluidized <a href="https://fishandcoralstore.com/product-category/reactors/">Reactors</a>.

BioChurn 90INT Reactor Specifications

• Rated for aquariums up to 100 gallons

• Holds up to 400 milliliters of biopellet media

• Dimensions: 8.66 inches x 4.52 inches

• Body diameter: 4 inches

• Height: 14.6 inches

• Feed pump: Aquatrance AQ-800

Because smaller reef systems respond quickly to nutrient swings, consistent pellet motion supports long-term stability.