Let's get our hydroponics started. I bit the bullet and got a Root Spa system. I was able to get it cheaper than I would be able to buy the parts and build it. I will post the progress of the system I post youtube video link of this system.
http://www.youtube.com/watch?v=hXbvysV06kc
Root Spa system
Are the buckets individual units or are they connected? You may run into issues with the reservoir getting hot.
They are individual units. There is a video in the first post. I have actually grown tomatoes with one reservoir with no problems.
http://www.cindystuff.com/challenge.htm