Does this fit the fluval 13.5 gallon evo?

I use it with a 9 gallon fluval tank. It works.

i have Top Fin filter on my 20 gallon tank , well i really dont know where do i place this carbon ?

Carbon should be the last thing the water touches before returning to the tank with the exception of a polishing pad. This is so ammonia and nitrite can be processed by the food bacteria before the carbon leeches it out of the water. Each filter is different so look at how the water flows in your filter for best placement.

How often does the foam filter need to be replaced?

For the health of your fish you should replace the mechanical filter, the foamy thing, at LEAST every 2 months. This isn’t a sweater that you wear and replace when it’s worn out. Who ever gave that advice doesn’t know their @$$ from a hole in the ground.

Is it possible to cut a third opening in the middle for an additional biomax bag?

Yes you could but that would mean you would have very little mechanical filtration. There won't be enough media left to filter anything.

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Fluval Spec/Evo/Flex Activated Carbon, Replacement Aquarium Filter Media, 3-Pack, A1377,Black

Fluval Spec/Evo/Flex Activated Carbon, Replacement Aquarium Filter Media, 3-Pack, A1377,Black

Product ID: 256602740

Details

Brand
Fluval
Item form
Granules
Item weight
5.82 Ounces
Liquid volume
34 Liters
Number of Packs
3

✨Creates crystal clear, sparkling water

💧Removes heavy metals & pollutants

⚗️Research-grade carbon for max adsorption

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4176 som

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Description

✨ Elevate your aquarium’s clarity game — because your fish deserve the best! 🐠

TRUSTED LEGACY BRAND - From Fluval, pioneers in aquarium innovation since 1975
TRIPLE PACK CONVENIENCE - Three replacement carbon inserts to keep your aquarium fresh longer
PREMIUM CHEMICAL FILTRATION - Eliminates odors, discolorations & toxins for pristine water clarity
VAST SURFACE AREA TECHNOLOGY - Maximizes impurity absorption for healthier aquatic environments
TAILORED FIT FOR FLUVAL SERIES - Specifically engineered for Spec, Evo & Flex aquariums ensuring seamless compatibility

Fluval Spec/Evo/Flex Activated Carbon is a premium, research-grade chemical filter media designed specifically for Fluval’s Spec, Evo, and Flex aquarium series. This 3-pack of activated carbon inserts effectively removes heavy metals, odors, discolorations, and pollutants, delivering crystal clear, sparkling water. Trusted by over 14,000 users with a 4.6-star rating, it combines advanced surface area technology with Fluval’s legacy of innovation to keep your aquatic environment pristine and healthy.

Specifications

ASIN	B0049RIUWK
Allergen Information	Nut Free
Best Sellers Rank	#7,788 in Pet Supplies ( See Top 100 in Pet Supplies ) #311 in Aquarium Accessories
Brand Name	Fluval
Customer Reviews	4.6 4.6 out of 5 stars (8,205)
Global Trade Identification Number	00015561113779
Included Components	Fluval Spec/Evo/Flex Activated Carbon, Replacement Aquarium Filter Media, 3-Pack, A1377,Black
Item Form	Granules
Item Type Name	Fluval Spec/Evo/Flex Activated Carbon, Replacement Aquarium Filter Media, 3-Pack, A1377,Black
Item Weight	5.82 Ounces
Liquid Volume	34 Liters
Manufacturer	Rolf C. Hagen (USA) Corp.
Manufacturer Part Number	A1377
Model Number	A1377
Pet Type	Fish
Target Species	Fish
UPC	015561113779
Unit Count	3 Count

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4176 som

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

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