Keep your aquarium water clean, clear and healthy with Tetra Large Aquarium Carbon Filter. Fish waste, uneaten food and other organic matter can cause toxic levels of ammonia and other pollutants which can be harmful to your fish. Tetra Large Aquarium Carbon Filter is made of layers of multi-density floss that effectively trap even the smallest particles and its activated carbon rapidly eliminates odor, discoloration, impurities and toxins.
Designed to fit the Whisper EX Filtration System
Traps even the smallest particles, nothing gets past this filter
I should have gotten medium size, but it still works! Local stores were all out.
They work for my aquatic turtles
on Jan 4, 2020
I have three aquatic turtles. I have to change the filters cartridges frequently, but that’s because turtles are messy. I’ve never had an issue with these filters.
on Apr 11, 2019
This is the only place that I can still find these filters! Arrived on time and undamaged. Fit perfectly into aquarium filter.
Great For Big Tanks
on Dec 7, 2018
I have a 55 gallon turtle tank and these work great!
However I change my filters out once a week and go threw 2 at a time and have to buy 2-3 boxes a month
However chewy is the cheapest place to buy them
I would highly recommend auto ship!
It would also be nice if they came in bulk
Needed for aquarium
on Apr 1, 2019
Tad pricey but needed for the aquarium filtration system ...
on Feb 11, 2019
My fish love a clean tank and these filters help do that
on Jan 12, 2019
Always more than satisfied with products and service.
Mid level filter
on Nov 25, 2018
Good price for a mid level filter! They do what they are supposed to do
Much less expensive than pet stores
on Aug 2, 2018Top 1000 Contributor
This are decent filter cartridges for a decent but not great filter. If you use a lot of cartridges as I do, Chewy is the place to buy them. I haven't found a lower price anywhere.
heavy duty filters
on Aug 17, 2018
these filters provide my 9 goldies with clear water all month long..