Depends on 110 vs 220 volts, and the amperage of the aerator. just off hand
I'd say #2 wire for the 110 to 15 amps, dig your trenchs deep ....

Doug

"John" wrote in message
...
I have a pond about 1000ft. from the house that I'd like to run an
underground wire to for an aerator. Is this too long a distance? If
not what gauge wire should I use?

Thanks. John