Tetra Whisper Bio-Bags Medium Filter Cartridge, 3 count
By Tetra
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$6.47 Chewy Price
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$7.99 List Price
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4 Customer Questions
How often do these need to be changed?
Answer by • Nov 29, 2020
It is recommended to change the filters monthly.
Are these 90 125 mpg
Answer by • Feb 05, 2018
The filters go by the gallons size of the tank. This filter fits Whisper Power Filters 10i, E, J, 10 and MicroFilter.
Can you open the top clamp to add other filter media and than reseal?
Answer by • Feb 04, 2019
The Bio-Bags are not intended to be opened and refilled. It is advisable to replace Bio-Bags when they are clogged.
what size tank?
Answer by • Jul 18, 2021
These Medium Bio-Bags are designed to fit Whisper Power Filters 10, 10i, E, J and MicroFilter (not included).












