anyway i can get away w. a cheap air pump vs. o2 pump. i cant seem to find an o2 pump online and i really dont want to spend a lot either. i was thinking if an air pump would suffice figuring that any air is better than no air.

i was going to try a hempy+air bucket method. i wanted to create a gap bw my grow medium and the water/nute reservoir and have the air pump below the grow medium to help induce air flow up through the roots.

would this even work? im thinking the air may just pass downward thru the drainage hole which would defeat the purpose of an air pump...right?

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Ahh shit, I smoked my stash and Im flat broke...Here we grow again.