JBJ U.S.A. Reaction Replacement Filter Media

Keep your filtration system running smoothly with JBJ U.S.A. Reaction Replacement Filter Media, designed specifically for the JBJ Reaction HOB Aquarium Power Filters. These pre-configured media cartridges make maintenance simple while helping support a clean and balanced aquarium.

Each pack includes a combination of mechanical and chemical filtration media to help trap debris and maintain water clarity, making routine filter changes quick and consistent.

What We Love About This Media

Designed for JBJ U.S.A. Reaction Filters
Made to fit seamlessly into the Reaction HOB series for quick and easy replacement.

Simple Maintenance
Pre-assembled media packs make it easy to swap out old media without disrupting your setup.

Supports a Balanced Aquarium
Helps manage debris and maintain clear water while supporting your existing biological filtration.

Consistent Performance
Using the correct replacement media helps keep flow and filtration operating as intended.

Available Options

HB-15 / HB-15 Replacement Media (3 Pack)
For use with JBJ U.S.A. Reaction HOB HB-15 filters. Ideal for keeping nano and small community tanks running clean and stable.

HB-35 / HB-45 Replacement Media (2 Pack)
Designed for JBJ U.S.A. Reaction HOB HB-45 filters. A reliable option for medium-sized aquariums that require steady filtration.

HB-55 Replacement Media (2 Pack)
For use with JBJ U.S.A. Reaction HOB HB-55 filters. Best suited for larger aquariums where consistent filtration is key.

How to Use

Remove old media from your filter and replace with a new cartridge. For best results, change media regularly based on your aquarium’s bioload and feeding schedule.

Tip: Avoid replacing all media at once if your tank relies heavily on established biological filtration. Stagger changes when possible.

Best For

Freshwater aquariums, planted tanks, shrimp tanks, and community setups using JBJ U.S.A. Reaction HOB filters.

Shipping

This dry goods item ships via standard ground service and may ship separately when ordered with other products.