New set up, how long am I supposed to wait for it to cycle?

So I was told to set it up with water and sand, then wait a day before live rock. Then another day after the live rock to put a hardy fish in to get the tank to cycle and I can add more fish in six weeks. I was also told that I should not have done that because now I have to do water changes every day. And I was also told the tank is technically cycled already but to stick with easy ones for now.
I have a yellow watchman goby in there right now. The store I got him from had him for awhile and said he (like that specific fish) is hardy and well started. I filled the tank two days ago, got live rock yesterday, and the fish today.

I plan on making it a reef, I have a marquis dual t5 and a really nice protein skimmer. I don't remember the name but I can check when I get home. I'm using a fluval 306 canister filter which is for up to 75 gallons (I was told a sump is better but the canister is fine since its powerful). Salinity is 1.023 Am I missing anything?
This is my second salt tank, but the first one was really simple like 5 gallons with a live rock in the middle and two damselfish and I remember literally nothing.

 

Bumping this up for you

 

Now I've had someone tell me once it's cycled it's done (so for me it would be after a total of two weeks based off where it is at right now). The ammonia is now zero, still showing some nitrites and then nitrates are still at <5ppm. I'm expecting a nitrate spike next week and then once the nitrites are gone and the nitrates are down to <2ppm I'm good, right?
To me it sounds like six weeks is more of a precaution because that's when everything has settled into place but is past when the tank has officially cycled. I'm not sure if that's right though

 

for salt, I am doing the water and live rock with snail for 4 weeks, then adding in coral etc, then fish, but all in 4 week minimum intervals. but I'm very cautious and don't like to throw a bunch of stuff at a tank at once or even "quickly"

 

That's smart, I'm eager to add things but I really don't want to fill up my tank right away

 

kidster9700, at this point, it looks like the water rock and snails will be in there like 2 months since I am going on 2 trips back to back and I really don't want to leave my tanks like that lol

 

Oh