@Auto melt
There really wasn't much difference in the end. This was my Northern Lights that took 108 days to finish. I lost this journal, Which is why there weren't any updates past a certain point.
Final weight was a hair over 4.5oz, which is on the low end of what I usually average per plant in a 5 gallon bucket, So I'm not going to say pumping air into the coco had a huge effect on yield.
It kept the coco wet for a longer period of time, and kept it cold, So that may be why she took so long to finish.
Do I think it had noticeable effects on growth, asides from keeping the roots cold and seemingly slowing everything down? Nope.
I believe that if I had done this with a super or photo, It may have had different results, But with an auto, I don't think there is enough growth time initially to make much of a difference.
I may have to return to this experiment once I have room in my tent, and run two plants of the same strain side by side, one with air, one without, To actually see if there's any difference.
But, until then, this one is done...