Looks like Hazyb got the answer he was looking for.
I'm closing this thread down now.
AFNUKGROWER - Please could you start your own thread if you have a journal or if you have an emergency plant problem, put up a post in Live Help Thread. It's not cool to thread jack for your own problems.
DG59 - It's nice to help a fellow grower out, but without a solution, you're just picking fault. If you take the time to post, why not help the fella out. (The best way to make a heavy soil light is to add some perlite to it - cannabis loves light ariy soil so that the roots can easily spread and develop) (that took no time)