nirbhao
Aquarium Advice Addict
Keep breathing!
Activated charcoal is the reason they say to replace the cartridge. After a few weeks, it stops doing chemical filtration. It still gives mechanical filtration.
You'll get through this!
Activated charcoal is the reason they say to replace the cartridge. After a few weeks, it stops doing chemical filtration. It still gives mechanical filtration.
You'll get through this!