I am not a aquarium novice. But, I mostly used an under gravel filter before upgrading to a larger tank and a diffrent filtration system.
The whisper 60 has two BIO filter cartridges (individual flow).
My ? is ... Should I change both at the same time or just one at a time ?
I do not want to kill/destroy the good bacteria that the old filter(s) cartridges has established.
No ... This is not a TetraTec 300/500 in which you would just "shuffle" the cartridges.
Yes ... This "new" tank was properly "cycled" .
If you own one of these, or if you have any information regarding my question, please answer.
2007-01-16
14:56:07
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2 answers
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asked by
Sinister
2
in
Fish