for all practical purposes, i believe that that is so, but, and i may be mistaken, air pressure is only partly responsible for surface tension in regards to bubbles. i believe the viscosity of the liquid would be important too, although, i believe that if a more viscous liquid is used, ie. oil instead of water, you would have a stronger bubble,but it would also require more air pressure to sustain the increase in the liquids mass. however, if one were to find a more viscous liquid, but whose mass were no greater than soap in water (the standard 'blowing' bubble liquid, you'd be ok. the problem would be finding one that also glows.