Thanks for your prompt reply, had become accustomed to getting quick responses from "NOTANOVICE" and all of a sudden he dropped off. Yes, you are correct, that the plugs mentioned are foam rubber, as that is what the initial research pointed to as a cheap alternative and the author of that particular piece recommended it. I have tried to find other data pertaining to this set up.....there is just too many differences of opinion to make an educated decision (being a newbie that is). I have quite a few threads on the site, tried posting in several different after recieving no response on a few. Anyway, The nutes being used seems to be working great with "Soil", and am in the process of hunting down "SuperThrive" locally. I think I am only a week or so away from being forced to harvest the two in flower now, so need to get something ready to go back in, do you suggest going to soil again just to keep the flow while working on this issue ?? or can you offer alternative(s) of hydro to get the faster and better grow for the space?
A Link to the member list follows to view all threads started by me.

Thanks Again for Your Time and Patience.

Link to ALL Threads.
http://boards.cannabis.com/member.php?u=22332

Link to Grow Box Pics & Setup
http://boards.cannabis.com/showthread.php?t=25445