Biological Filter Media (Per Litre)

About Biological Filter Media

Biological Filter Media is designed to provide a large surface area for beneficial bacteria within aquarium filtration systems. These bacteria play an important role in the biological filtration process by helping break down toxic ammonia and nitrite produced by fish waste, uneaten food and other organic matter.

This unbranded biological media is suitable for a wide range of freshwater and marine aquarium filtration systems. It can be placed inside canister filters, sump filter chambers, internal filters, trickle filters and other systems designed to accommodate biological media.

The porous structure provides surfaces where nitrifying bacteria can colonise and establish. Once mature, the media becomes an important part of the aquarium's biological filtration capacity.

For best results, biological media should be kept continuously submerged or supplied with well-oxygenated aquarium water. When cleaning the media, use removed aquarium water rather than chlorinated tap water to help preserve the established bacterial population.

Quick Care Guide

• Product Type: Biological Aquarium Filter Media
• Brand: Unbranded
• Material: Porous biological filtration media
• Use: Biological filtration
• Suitable For: Freshwater and marine aquariums
• Filter Compatibility: Canister filters, sumps, internal filters and other filtration systems
• Function: Provides surface area for beneficial bacteria
• Removes: Ammonia and nitrite biologically through bacterial activity
• Maintenance: Gently rinse when required
• Cleaning Water: Use removed aquarium water
• Replacement: Replace gradually rather than removing all established media at once
• Flow: Good water circulation recommended
• Reusable: Yes
• Chemical Filtration: No — primarily biological filtration

Frequently Asked Questions

What does biological filter media do?

It provides a surface for beneficial bacteria to colonise. These bacteria help process ammonia and nitrite as part of the aquarium's nitrogen cycle.

Can it be used in marine aquariums?

Yes. Biological filter media can be used in both freshwater and marine filtration systems.

Where should biological media be placed?

Place it in an area of the filter where aquarium water can flow freely through the media while maintaining good oxygenation.

How often should biological media be cleaned?

Only clean it when it becomes significantly clogged with debris and restricts water flow. Excessive cleaning can remove beneficial bacteria.

Can I wash it under tap water?

It is better to avoid chlorinated tap water. Gently rinse the media in water removed during a routine aquarium water change.

Should I replace all my biological media at once?

No. Established biological media contains beneficial bacteria. If replacement is required, replacing it gradually helps maintain biological stability.

Common Mistakes

• Washing mature biological media under chlorinated tap water.
• Replacing all biological media at the same time.
• Allowing the media to remain clogged with excessive detritus.
• Placing biological media where there is little water flow.
• Removing established biological media from a mature aquarium unnecessarily.
• Assuming biological media alone can compensate for overstocking or poor aquarium maintenance.