Quote Originally Posted by Marvey
If you
were to run a fish tank pump,up through a
hole in the bottom of your pot planter,and
you were to turn it on and pump air to the soil,would it give extra oxygen for the plants roots to grow thicker or healthier,or is it just a waste of time?

I did this exact thing.

1 plant with air stone. 1 plant without. Same plants, same lights, same nutrients, etc...

Honestly, I didn't notice much difference for about two weeks, but after that, there was a significant increase in growth and overall 'vigor' of the plant that had the air pumped to the roots. It fell behind (stress from air pressure?) the 'control' plant, but, like I said, after about two weeks, it crept right past the control.

Also, when I harvested the plants, the root mass of the air-enhanced plant was around 1.4-1.5 times that of the control. The root system was just a lot 'fuller'.

I didn't notice anything in particular about the final product, but I wasn't really looking at the time.