filter went dead

My HOB did that once. I tried a few more times and it started going again. Never did it again.
 
I think if you absolutely cant get to the LFS, as mentioned, keep running the airstones and let the filter media float in the tank. It will look like crap but it's the best you can do to salvage the bacteria.

Do you have live plants in the tank?
 
Before you decide completely that the filter is a complete thing of the past and does not ever have a chance of working again, take it apart first and clean it. it is possible that there is a clog somewhere along the line(most likely the impeller) and once it is cleaned out and reassembled, it may start running again as if it never had a problem. If this does not work, then keep the air stones going and if you have a power head that will work too. Also float the media in the tank to keep it wet so you do not lose all of the beneficial bacteria that has built up to support life in your aquarium. This will eliminate the possibility of having to cycle your tank all over again. When you do finally get another filter for this tank, and you do manage to get this filter up and going again just to hold you over, you can run it along side the new filter to help seed the new filter. This way, you most likely will not see a disturbance in your water readings.

Marinemom
 
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