Bobby I'm here in Arkansas and for the most part it's fairly mild here in winter and I don't run my air after mid to end of Oct. I haven't had a problem yet in 5 years. Pro's and Con' of this.

Pros,
1. It gives your pump a break for awhile and will last longer.
2. Your electric bill will go down 10 to 20 bucks a month for a few months.

Con's,
1. Your fusers could get some build up on them of green funk and such so your gonna want to go and cycle them on and off for a 30 to 60 seconds every month or so. Or pull them up and scrub them off.

I think Bill said once your water temps hit about 60 or below your entire water column will start to be saturated with D.O. hence the reason why your don't need air on. Under normal circumstances as you say.

I won't turn my air back on then till about end of march remember you need more then just a couple nice days to start really warming your pond up and having to worry about mixing D.O. again.

RC

The only difference between a rut and a Grave is the depth. So get up get out of that rut and get moving!! Time to work!!