Carbon Zeo-Carb Replacement Cartridge for Fluval C2 Filter, 3 x 70 g

The Carbon Zeo-Carb Replacement Cartridge for Fluval C2 Filter, 3 x 70 g is a set of three activated carbon cartridges designed specifically for the Fluval C2 canister filter. Each cartridge contains 70 g of Zeo-Carb media formulated to reduce odors, remove discoloration and adsorb organic contaminants from aquarium water through chemical adsorption. These replacement cartridges are intended for routine maintenance to help restore and maintain water clarity and improve overall filtration efficiency in freshwater and planted aquariums.

Advantages

These cartridges combine activated carbon media optimized for chemical adsorption with a shape and size tailored to fit the Fluval C2 filter cartridge chamber. They provide a straightforward replacement option that helps reduce dissolved organic compounds, tannins and surface discoloration without altering mechanical or biological filtration media. Supplied as a three-pack, they allow for scheduled cartridge changes and support consistent filtration performance between media replacement intervals.

Suitable for

• Routine replacement in Fluval C2 canister filter installations
• Freshwater aquarium setups where removal of odors and discoloration is needed
• Planted aquariums requiring clarification of water without disturbing biological media
• Situations where temporary chemical adsorption is needed after medications, feedings or decor changes

Key specifications

• Quantity: 3 cartridges per pack
• Media type: activated carbon (chemical adsorption media)
• Net media weight per cartridge: 70 g
• Compatible filter model: designed for Fluval C2 canister filter cartridge chamber
• Primary function: removal of odors, discoloration and dissolved organic contaminants

How to use

Shut off and depressurize the Fluval C2 filter according to the manufacturer's instructions. Open the filter and remove the spent carbon cartridge. Insert a fresh 70 g Zeo-Carb cartridge into the designated carbon cartridge slot, ensuring correct orientation and fit. Reassemble the filter, refill if necessary, and restart the unit following safe priming procedures. Replace carbon cartridges on a regular schedule or as needed when water discoloration or odors reappear.

Usage recommendations

For routine maintenance in freshwater and planted aquariums, replace carbon cartridges every 2–4 weeks or sooner after heavy feeding, medication treatments or decor changes. Do not use carbon simultaneously with prolonged medication treatments unless advised; remove carbon during dosing to avoid adsorption of active substances. Store cartridges in a cool, dry place in their sealed packaging until use.