A guy from my LFS told me to fill it up with activated carbon and replace the carbon every 6 weeks?
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- I have an Eheim external biological filter (not a wet-dry one) and an Eheim internal sponge filter (I replace the sponge with the Eheim activated carbon for two days a month - is it ok?
- LFS suggested replacing carbon, soaking food with quarter capsule of Furacyn for two weeks, and constantly checking Ammonia levels. What do you think of this approach?
- A guy from my LFS told me to fill it up with activated carbon and replace the carbon every 6 weeks?
