How long does a commercial 6" carbon filter last?

a year....maybe year and a half max. I have used mine for a little while and need to get the carbon replaced. You will know when it starts to go bad.... It will stop covering up the smell
 

SCARHOLE

Well-Known Member
Ive always used home made versions, but after one grow the carbon shold be replaced.
But its cheep an availabel at most pet stores.
 
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