Hydroponics systems, gardening equipment, grow lights and plant nutrients at Growco Indoor Garden Supply in Grand Rapids, Michigan has 396 gph pumps for under $20. Get the ez cloner spray nozzles, red ones will screw into 1/2" schedule 40 pvc in 11/32 " holes. 2" net pots and now your growin aero. Might not go back to soil! lol. I used to use humidity domes with my aero cloner but by the time they rooted some of the leaves might have yellowed. So I am using Al B. Fuqt's method of not spraying or domes. If they want roots then they will grow them. If you spray and cover them they are not needing to push out roots because you are providing the water to the leaves. Rockwool works well for soil growing or hydro too. Keep checking this site, there is so much info from veteran growers. And when you have some success stick with it to build some confidence. Peace!