yeah great start. getting something to live longer than a week you know your doing something right!
couple things that i learned quick that will help you out immensely
- try and get up to a pound of rock per gallon. FOWLR or Reef, you will notice far less swings in parameters like ammonia and nitrates, and will help if you miss water changes or a couple. by no means is that a rush as evidence of your tank doing just fine, but you will eventually not have to even run carbon!! as a matter of fact, to avoid a crash i would add the rock slow as they tend to decay some and produce ammonia.
- the light will grow nothing, so don't skimp out on the light, first mistake i made was getting a simple 2 bulb unit, now I'm spending more money.
-the HOB will be just fine, when you get the live rock going, you can take out the bio wheel (what is assumed to crash tanks), and run chemi-pure or phosban, i run both. the added flow in the tank doesn't hurt anything, and if you get LED's or HQI lighting, it will break the surface enough to make the amazing shimmer. also a great place to dose, throw your fresh water in, chemicals of any sort, without throwing it directly in the tank.
Great start!