Did these videos a few years back but great step by step process to starting a reef aquarium:

Did this video some years ago but it still works today:

Basic Components • Bottle or bucket 1-5 gallons • Airpump and subing • Salt water • Temperature 20-28ºC/65-82ºF • Salinity 10-35 ppt (Specific Gravity 1.0075-1.026. We run ours at 1.017) • Live Rotifers

Once you have cycled your aquarium, everything is stable, added your clean up crew, added a fish, maybe two, and you want to add some coral. Caution should be taken because many starter coral can grow