Corals: shrooms. zoas, buttons, colt, xenia, 2 BTA, torch, frogspawn, open brain,blastos, singiliera (sp?), acro, and monit caps.
The most important thing I have learned is patience and understanding. Being patient and buying the right equipment and livestock. Understanding a fish or coral before purchasing it is key to helping it florish. Understanding how the system works and the impacts changes will have. I have made alot of mistakes. One of the best places for info is a forums like this.