Cycle Without Heater

[BamboozleBean]

I put a small piece of filter media from another tank to jumpstart my new tank, but there’s no heater as it’s arriving tomorrow.
Can a tank technically cycle without a heater? Did I kill of the bacteria in my filter media, there’s more though. My room temp is probably about 70.

 

[SDK]

You will be fine and did not kill anything...

 

[W1ngz]

One day without a heater isn't going to kill anything. There's no reason it wouldn't cycle, it would just take longer since the biology acts slower at lower temperatures.

 

[lapin]

You will need to go sub 0 to kill bacteria