For completeness for future searches...
Here is a final shot of the unit. Tank tested fine - water tight. I tried a couple of stones from Petco. They looked great, big pancake disks, heavy, etc. They ended up s#^^^^^&g and the ones that came with the Power Bubbles were much better (aquaticeco.com will be next as needed). Drilled three small holes in lid to relive pressure from aerator. I also bought a car charger extension from radio shack, cut it half, put the male on the aerator and the female on the clips that came with aerator. Now I can do cigarette lighter or direct to a battery.
http://www.striped-bass.com/Stripert...7&d=1237166961