you know ive seen people who use soil-less mixes, and what they do is they feed straws thru the pots with holes poked thru them, for fresh air to flow thru the soil, so basically straws poking up from the top of the soil going all the way down. You would have to close or melt 1 end so it doesn't fill with soil when inserting. (must have holes poked thru the sides of the straw) heck you could even Rig up a low level air pump,. heh now there's an idea!

the other method I have seen are using smart pots, which are made from a breathable water proof fabric, personally if I was going to use a soil-less Mix, I would go straight to a Hydro Deep Water Culture setup. Much Much easier to regulate a consistent feeding cycle.