How long for an FX5 to be fully established with BB?

  • We are currently upgrading MFK. thanks! -neo
Lots of variables and probably is ok, but if it were me, I'd dose the tank with Seachem Stability just to make sure. I love that stuff...and love the FX5!
 
As mentioned, you just use the bio media from your old filter into the fx5 and/or squeeze out the sponge in the old filter into the fx5 as it has the bb. No need to buy anything else. Save your money on new fish.;)
 
After running the filterfor a month on your tank, the media inside the FX-5 should be well colonized by beneficial bacteria. It should be safe to remove the HOB filter.
 
Hello; In an established tank the bb will be on many surfaces of the tank, not just in the filter media.
 
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