one of the reasons you may see different ways of doing the same thing is sometimes related to the type of aquariums kept, or sometimes when a person got into the hobby (it is constantly changing). the great thing is most of the methods are interchangeable, so you can pick what works for you, and eventually come up with your own twist on things as you gain experience.
for instance, Bill is a reefer, and while i have kept a few softy/LPS reefs, i've never really dabbled in SPS, but as you all know, i know a thing or two about FO and FOWLR, as well as clams and Syngnathids (SH and their relatives). Lanny brings a for-real marine biologist's take on things, so we all learn and help each other.
i like to think of it as a way to give something back to the hobby, because when i started SW 20 years ago, getting good info SUCKED, and i would have LOVED to have had knowledgeable folks to learn from.
