I just wanted to let people who are interested in dry base rock to be sure to check out
www.reeferrocks.com
They are currently having a sale where they are including small pieces of frag mounting base rock if you buy any of their base rock packages.
I have ordered from them several times in the past and have never been dissapointed. Well worth the visit to the website and for the price, you cant go wrong. Less than $2.00/lb for base rock. Awesome.
BTW, I have no affiliation to reeferrocks.com. I just like to point out good people who do good things for the hobby when I see it. I think honorable dealers deserve positive word-of-mouth from those of us who take this "Addiction" seriously!