Bubbleponics Newbie has some questions!

I have my bubbleponics set up and running and so far have been blown away with my results. The roots are quite massive while the overall density of the plants and leaves are getting thicker and bigger all the while, I still have new branches growing out through the older leaves and just have a few more questions if anyone can help me out.

1. Should I be pruning or trimming back any of these leaves? Like I said newer ones are pushing their way past the old one, so I am not sure if it would help or hurt it.

2. In about a week I will be changing from the 18/6 to 12/12 lighting is there anything else I should be doing to maximize the flowering potential?

3. Has anyone ever tried anything to enhance the overall productivity of the plants, I.E caffeine pills, birth control pills, I have read a few other things but wanted to know what other people thought.

Thanks again for helping me out, I have been pretty much able to figure out how to get this going just by reading all the great literature provided on this site and am thankful for any input im given!

Pacovilla

Got any pics? I'm curious to see what you've got there. I just started mine using Rosemans instructions on how to build one. Yesterday started the first official week of growth.

Actually no I dont have any pics yet, but honestly I was a little nervous when I first started this cause I did follow Rosemans setup as well and because it was my first time it def took some tweaking to make it all work perfect. Its hard to really notice the growth when your constantly checking them out but I left for a wedding overnight this last weekend(everything is on a timer) and when I came back I was shocked at how much they had grown because I hadn't seem them in 2 days. The plants had grown into the light bulbs(using cfls so no biggie). I am about to change my water again and get the roots some extra air time and I am expecting another big boost in growth.