Fluval Zeo-Carb – Carbon & Ammonia Remover Filter Media
Fluval Zeo-Carb is a convenient 2-in-1 chemical filtration media that combines premium activated carbon with ammonia-removing zeolite. It is designed to help keep aquarium water clean, clear, and healthier by removing odors, discoloration, dissolved impurities, and toxic ammonia.
Because Zeo-Carb combines two types of chemical filtration in one media, it can save valuable filter space while providing broad-spectrum water polishing and ammonia control.
Key Features
- 2-in-1 chemical filtration media
- Combines activated carbon and ammonia-removing zeolite
- Helps remove odors
- Helps reduce water discoloration
- Removes dissolved impurities and toxins
- Helps remove toxic ammonia
- Promotes clean, clear aquarium water
- Saves filter space compared with using separate carbon and ammonia media
- Compatible with Fluval canister filters
- Bulk sizes include a mesh media bag
Product Information
- Brand: Fluval
- Product: Zeo-Carb
- Product Type: Chemical aquarium filter media
- Media Type: Activated Carbon + Ammonia Remover
- Compatibility: Fluval canister filters
- Available Bulk Sizes: 3 x 150 g and 1,200 g
What Does Fluval Zeo-Carb Do?
Zeo-Carb combines two common forms of aquarium chemical filtration into one product.
The activated carbon component helps remove:
- Odors
- Discoloration
- Dissolved organic impurities
- Various unwanted contaminants
The zeolite component helps remove ammonia from the water.
Why Use Zeo-Carb?
Zeo-Carb is useful when you want both water polishing and ammonia control but have limited room inside the filter.
It is especially practical for:
- New aquarium setups
- Temporary ammonia control
- High-bioload aquariums
- Overstocked holding systems
- Quarantine tanks
- Retail aquarium systems
- Situations where odor or discoloration is present
How to Use
- Rinse the media thoroughly before use to remove dust.
- Place Zeo-Carb into an appropriate media bag or filter compartment.
- Position it where aquarium water will flow directly through the media.
- Continue normal mechanical and biological filtration.
- Replace the media as it becomes exhausted.
Filter Placement
For best performance, Zeo-Carb should be placed after mechanical filtration so larger debris is removed before water reaches the chemical media.
This can help prevent premature fouling and allows the carbon and zeolite to work more efficiently.
Replacement Schedule
Fluval recommends replacing comparable Zeo-Carb media approximately every 4 weeks for best results.
Actual replacement frequency can vary depending on:
- Aquarium stocking level
- Ammonia load
- Feeding
- Water quality
- Filter flow
- Overall aquarium maintenance
Important Ammonia Note
Zeo-Carb can help remove ammonia, but it should not be used as a substitute for a properly established biological filter.
If ammonia is present, always investigate the underlying cause. Possible causes include:
- An uncycled aquarium
- Overfeeding
- Overstocking
- Dead livestock
- Filter disruption
- Excess organic waste
Continue testing ammonia and nitrite and perform water changes when necessary.
Using Zeo-Carb in Established Aquariums
In a fully cycled aquarium, biological filtration should normally handle ammonia produced by livestock.
Zeo-Carb can still be useful when:
- Additional chemical filtration is desired
- Water has an odor or yellow tint
- There has been a temporary increase in ammonia
- The biological filter has been disrupted
- Extra support is needed during aquarium maintenance
Medication Warning
Activated carbon can remove many aquarium medications from the water.
If treating fish with medication, remove Zeo-Carb unless the medication manufacturer specifically states that carbon filtration may remain in use.
After treatment is complete, fresh Zeo-Carb can be used to help remove residual medication when appropriate.
Freshwater and Saltwater Use
Fluval lists several Zeo-Carb inserts for both freshwater and saltwater aquariums. However, the ammonia-removing zeolite portion is most useful in freshwater systems, so follow the directions for the exact Zeo-Carb product and filter being used.
Frequently Asked Questions
What is Fluval Zeo-Carb?
It is a 2-in-1 chemical filter media combining activated carbon with ammonia-removing zeolite.
What does Zeo-Carb remove?
It helps remove odors, discoloration, dissolved impurities, toxins, and ammonia.
Does Zeo-Carb replace biological filtration?
No. A healthy biological filter should remain the primary method of processing ammonia and nitrite.
How often should Zeo-Carb be replaced?
Fluval recommends approximately every 4 weeks for comparable Zeo-Carb products, although actual life depends on aquarium conditions.
Can I use Zeo-Carb while medicating fish?
Usually not, because activated carbon may remove medication from the water. Follow the medication manufacturer's instructions.
Does Zeo-Carb save filter space?
Yes. Because it combines carbon and ammonia-removing media in one product, it can free up room for additional filtration media.
Should I rinse Zeo-Carb before use?
Yes. Rinsing helps remove fine dust created during handling and shipping.
Available at Tropical Treasures Wyo
Fluval Zeo-Carb is available at Tropical Treasures Wyo in Cheyenne, Wyoming, when in stock.
Eligible dry goods are available for shipping.
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