How long can a tank go without filter?

[ptran]

But without surface agitation you'd be in trouble

That's true. The DO will be depleted without surface agitation and the fish will suffocate.


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[ptran]

In the aftermath of hurricane Rita I lost power for a week or it may have been just five days but none the less I had a battery operated air stone that I kept in there the whole time and I never lost a fish. I had an 80G saltwater tank at the time.

That's awesome. What about the bacteria in the filter. Would they survive that long?


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[ptran]

you bring up a great point and a reminder that I need to get some back up gear incase of power outage

Yes it's worth the investment. They don't cost that much anyway.


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[troy tucker]

It really depends on your bio loud. if it's low a few day Real high a day. Also a planted tank can go even longer.

[TattedUpFishGuy]

But without surface agitation you'd be in trouble

[TattedUpFishGuy]

In the aftermath of hurricane Rita I lost power for a week or it may have been just five days but none the less I had a battery operated air stone that I kept in there the whole time and I never lost a fish. I had an 80G saltwater tank at the time.

[Crush]

you bring up a great point and a reminder that I need to get some back up gear incase of power outage

[ptran]

As a result of the storm last night, my house lost power 3 times in the night. It lasted about 1-2 hours each.

I had battery air pump that I bought from Academy: 1 for each tank. Broke them out of the box and put in the battery ready to go. I put 2 air pumps in the 150gallon Moba tank, and 1 in each of the rest.

Question is: how long can a tank go without filter or air pump? I know it depends on tank size and the fish load, but how many hours on average that you would feel comfortable?