I have these big air stones running on an industrial pump to aerate the buckets. The airs stones cover about half the area of the bucket and provide plenty of air. I used a frozen bottle of water to chill the res last flower but the water would melt within a couple hours.

I think it is just plain too damn hot outside to flower inside right now, even in my cool basement. My 1KW HPS is making it impossible to deal with the temps without some kind of AC unit. I am just going to have to move the two plants back to veg and try again in a month or so.