Quote Originally Posted by CanGroIt
13 hours after starting the air pump and timer and watering each pot with 1cup of water, the amount of moisture in the pot with the smaller plant is less than the larger one. The effect of the air pump is working the way I thought it would which is good. What I don't know is if this will be, overall, beneficial.

I used a moisture meter to determine the amount of moisture, ranges from 1dry - 10wet. After 13 hours, at a depth of 3" into the soil, the big plant read a 7 and the smaller a 6.

At hour 17 I will recheck the moisture meter at same depth and see the difference......

CanGroIt::::
There has got to be more evaporation with the air flowing through too. How much of the water use is that and how much is the plants using more is the question. What I am worried about is that just like what happens when the roots come in contact with the air in drainage holes and it cuts them off, that you somehow will hurt the roots in the middle of the root ball with this air flowing in. I'm wondering if the "oxygen" has to be attached to the water molecules to be beneficial to the plant. We shall know soon I suspect.

Emmie