Will this work for the topfin 40 gallon?

It depends on the capacity of your filter. Clients typically use cartridges "large" for fish tank 40 gallon

how do you replace carbon after using algae tablets?

There is a filtration system in my tank placed at the upper part of the tank at the back. I open the topmost flap and you can see where these Bio-Bags are supposed to go. Take the old one out taking note of how they were inserted and do the same thing.

What goes in front the Biofoam foam Or the disposable filter cartridge ?

The biofoam then the filter that's the way i did it.

will this fit whisper 60 filter

I checked the box and YES it will.

Tetra Whisper Ats26170 Assembled Biobag Filter Cartridges Large 6 Count

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Keep your aquarium crystal clear and your fish thriving—filter like a pro!

BULK VALUE PACK - Large 6-count set ensures long-lasting filtration and fewer replacements—stay stocked and stress-free.
SUPERIOR WATER CLARITY - Advanced carbon fiber material removes odors, discoloration, and keeps your aquarium pristine.
UNIVERSAL COMPATIBILITY - Fits Whisper power filters 20i, 40i, c, 20, 30, 40, and 60 for seamless integration.
EFFICIENT DEBRIS CAPTURE - Fine mesh design traps fish waste and debris, promoting a healthier aquatic environment.
READY TO USE CONVENIENCE - Pre-assembled cartridges save time and hassle—just pop in and go.

The Tetra Whisper ATS26170 Assembled BioBag Filter Cartridges come in a convenient 6-count pack, designed with carbon fiber mesh to efficiently remove debris, odors, and discoloration. Compatible with multiple Whisper power filter models, these pre-assembled cartridges simplify maintenance while ensuring superior water clarity and a healthier aquatic environment.

Specifications

ASIN	B014TB09XI
Best Sellers Rank	#52,100 in Pet Supplies ( See Top 100 in Pet Supplies ) #676 in Aquarium Filter Accessories
Brand	Tetra
Brand Name	Tetra
Customer Reviews	4.7 out of 5 stars 934 Reviews
EU Spare Part Availability Duration	1 Years
Item Type Name	Cartridges
Item Weight	0.5 Pounds
Manufacturer	Tetra
Manufacturer Part Number	Tet-2959
Manufacturer Warranty Description	Tetra Whisper ATS26170 Assembled BioBag Filter Cartridges, Large 6 Count
Material	Carbon Fiber
Material Type	Carbon Fiber
Model Number	26170
Number of Items	2
Product Benefits	[Improves water clarity, Removes odors and discoloration, Catches debris and fish waste]
Set Name	Tetra Whisper Bio-Bag Cartridge Set
UPC	024144491821
Unit Count	6 Count

Reviews

K**L

Filters the water really good

Keeps the fish healthy

21.01.2025

H**N

great

18.12.2025

S**.

Basic Filter Bag - Great Price

Best price I've seen on a box of 3...>Walmart has them for more than $20!

5.10.2023

M**N

They do the job!

I’m discussed when I pull this out of the filtration! My fish are dirty little pigs!!

19.12.2023

A**N

Good deal

Came all stirred up, carbon everywhere but all good!!

29.09.2020

J**O

Great value!

Comes assembled and easily fits into the filter with no issues. Keeps the tank pristine.

26.06.2019

R**C

great for small turtles in small tanks

These are great. keep the 10-20 gallon turtle tanks clean. I have a small mud turtle and a baby musk turtle.

24.03.2022

C**E

Tank, cleaners

Works great in my fish tank

1.04.2024

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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