Craig, some people I know using Randy 2 part are doing well with growth. Some aren't. The ones who aren't doing well always have another outlying issue. Your water quality has to be good for anything to work. You're betting on water quality here.
Personally, I don't think the brand matters. Most supplements I use are purchased at HD and GNC, and have given me just as good as the results I got from ESV and Tropic Marin.
Dave, I'm not going to get into that on this thread. I'm probably not going to get into it much at all. I'm riding Shaun's coat tails on this one. He can actually drop science on us. I can merely copy and hope it works. We touch on some stuff in this thread.
http://www.manhattanreefs.com/forum/coral-farming/22217-italian-blue-coral-method.html
Also Dave, this will answer your questions from the PM:http://www.manhattanreefs.com/forum/userpage.php?do=main&userid=624
Pierce, tank has been up since October of 2004. I've been using Randy 2 Part for about 7 months.
A lot of the questions people ask me can be answered on the blue My Tank over there on the left right under my Reefer Ratings.