How long to mature a filter

Mark Webb

Member
Joined
27 Nov 2008
Messages
365
I am running a new external filter on a mature tank which has an internal filter. How long will it take to mature the external ready for use on a new tank?
 

GreenNeedle

Member
Joined
19 Jul 2007
Messages
2,726
Location
Lincoln UK
Just put the media from the old filter straight into the new one and then it's job done.

AC
 

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