Bacteria death after power outage?

[mattcham]

How long can a biofilter survive during a power outage?

For those of you who shut off your canister filter during large water changes, how long can you leave the power off before your biofilter dies?

 

[dalto]

Typically a few weeks as long as it stays wet and isn't otherwise disrupted.

 

[mattcham]

Interesting... I thought the aerobic bacteria die when there is a lack of oxygen. So that process takes weeks to occur? Not just one or two hours?

 

[Masha]

I have read that they don't necessarily die, but they do go dormant, and need some time to revive. I would love to know more about it though.

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