New filter with existing filter in same tank

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Laserfy2

Feeder Fish
MFK Member
Aug 2, 2020
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hello, i want to get an external canister filter to replace my unsightly internal filter, the existing filter is cycled. Is it okay to put a new filter in with it?
 
Yes you can put a new filter on a tank with an existing filter. I would leave the existing internal filter in the tank for a few weeks while running the new canister filter OR you can put the media from the internal filter in the new canister filter if it fits.
 
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