WoW you dont know what your asking your fixing to get alot of reading material
Remember slow is the key patience and stock it slow! Live Rock generally 1.5-2 lbs a gallon. The more you have the better of a biological filter you will have.
Salinity 1.023-1.025 is a good range.
Ph 8.0-8.4 is good.
temp 78-82 depending what is in your tank.
testing - keep a log book and test weekly log your results you will be thankful later.
substrate roughly 2lbs per gallon.
water- do not use tap water R/O or distilled is your best bet on this when doing a water change go the same route and remember salt doesnt evaporate on the water does so do not top off with salt water.
You want plenty of surface agitation to allow for adequate oxygen lvls in your tank.
Very important to have a protien skimmer to skim for unwanted nutrients that will decrease your water quality.
Water change 10% monthly 50% every 6 months.
Lights - depending on your forte depends on the lights you need wheter it be pc or vho or t5 or halides. 3-5 wats for softies, 6-8 for stonies and clames.
Hope this helps you out good luck.