Aeroflow watering ?'s

Well some time ago I asked for advice on running my aeroflow for the first time and now im in need of some opinions/advice.

I am curious as to the water schedule others have used the only advice I recieved said run it 24 hours a day. Its been 3 weeks since I have placed my well rooted clones into the system, water level is about 1" deep inside tubes, lights are about 24" from the plants and there only about 6-8" tall I am concerned i may be overwatering but if I shut off the water im afraid the roots in the water will rot. I am relatively skilled in growing but aeroponics is new to me. HELP!!!!

Per General Hydro's suggestion, let pump run 24/7. Are you using nutes?
I put 50 UNROOTED clones in my AF 2 weeks ago, and they are now about 14" tall.

I am using canna aqua vega 6.0ph 1000ppm, water temp 55 degrees, air temp averages 68-75

I used 5.5 ph'd RO water the first couple of days. Then I started adding nutes (3 part GH). 3 or 4 days at 4-500ppm. Couple days later 600ppm.
I'm now at 800ppm, and I'll level off at 1000ppm. I keep the ph at 5.5 to 5.8. Not sure if this makes any difference, but thats how I'm doing it. I also use a low dosage of H202 every 3 to 4 days thruout the grow.

Thats an awesome girl, i gotta say u lucky dog!

Hah! I don't know who she is. I just like the pic.