How do I change the fish tank filter?

M

mslin

New member
Hello everybody

Someone knows which is the best way to change the filter to the fish tank? without killing or loosing the "good" bacteria? or damaging the water parameters?

Any answer will be highly appreciated!
 
it depends on what type of filter you have. if you have a filter which gives you different chambers for media ie; ceramic beads, foam, carbon etc, then i recommend you only replace one media at a time. ie; one week, remove the carbon, in two weeks, remove the ceramic beads etc. if you have a filter which has those horrid cartridges that are just floss filled with carbon...well, you dont have much option other then to change it all at once. in this case make sure you do not disturb or clean out the bacteria that is in the filter itself.
 
You need to clone new media alongside old media for a few weeks before you can throw the old media away, this transfers that good bacteria to the new media and avoids throwing the tank back into the nitrogen cycle.

See if you can squeeze in the new sponges in the casing with the old.
 
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