Fluval AC70/110 Active Carbon Insert

The Fluval AquaClear Active Carbon Insert is premium activated carbon that keeps aquarium water clean and crystal clear. Its highly porous surface adsorbs odors, discoloration, and dissolved organic toxins, so your tank stays fresh and your fish stay healthy. Sized for the AquaClear 70 and 110 filters, it works in both freshwater and saltwater aquariums and comes as a single insert or a value 3-pack.

Slide it into your AquaClear (AC) power filter after the foam and biological media. Want phosphate and nitrate control too? Step up to Clear-Carb. Pair it with BioMax for biological filtration, and find more media in our Filter Media & Cartridges collection.

Features

• Premium activated carbon adsorbs odors, discoloration, and organic toxins
• Improves and maintains sparkling water clarity
• Ideal for removing medication from the water after a treatment
• Pre-shaped insert drops straight into the filter, no loose media
• Sized for the AquaClear 70 and 110 power filters
• Available as a single insert or a value 3-pack
• Works in both freshwater and saltwater aquariums

How to Use

Rinse the insert under running water, then place it in the media basket of your AquaClear 70 or 110 filter, after the mechanical foam. Carbon has a finite capacity, so replace it about every 3 to 4 weeks to keep it adsorbing effectively. It is also perfect for pulling leftover medication out of the water once a treatment is finished.

Specifications

Recommended Pairings

• AquaClear / Fluval AC70-AC110 power filters, the filters this insert fits
• AC70/110 Clear-Carb, carbon plus ClearMax to also remove phosphate and nitrate
• AC70/110 BioMax, ceramic bio-media for biological filtration
• Filter Media & Cartridges, all replacement media in one place

FAQ

What does activated carbon do? It adsorbs dissolved impurities such as odors, yellow tannin discoloration, and organic toxins, keeping your water clear and fresh.

How often should I replace it? Every 3 to 4 weeks. Carbon fills up over time, so swapping on schedule keeps it working.

What is the difference from Clear-Carb? Active Carbon is straight activated carbon. Clear-Carb adds ClearMax resin to also pull out phosphate, nitrite, and nitrate.

Can I use it in saltwater? Yes. Activated carbon works in both freshwater and marine aquariums.