I did my own research on where to buy from dealers who are reef concience. Here's two very helpful websites that show some of what I found.
www.reefprotect.org (This organization has produced the Reef Fish Guide)
www.amdareef.com (American Marinelife Dealers Association)
Also learned a lot more in some books like this one: "Saltwater Aquarium Models: Recipes for Creating Beautiful Aquariums That Thrive"