nah seriously I dont think you can have too many bubbles, the bubbles add O2 which the roots love and if you could add to many bubbles / air then wouldnt aeroponics not work ? a good rule of thumb I have learned is you want the water in the pot to look like a pot of water boiling over but hell if you could get it to be even more than that I dont see how it would hurt. More bubbles the better!
I have the same thing going on in my sport cooler reservoirs on a few of them I use four 6 inch air stones and it does move like rapids but this is the root ball you get at 30 days.View attachment 1188292