You said your new, and I am not exactly old salt at it yet, but I will be the first to admit that I killed a fire angel, and one other fish (80 bucks worth of fish) due to rushing it.
If i were you, I would go out _tonight_ and get a saltwater test kit, and test all your parameters. if you measure _any_ ammonia, i would evac the fish, and let it go for another week atleast.
My flame angel seemed perfect when I put him in the night before, i got up in the morning to find him in the corner gasping, I litterally watched him die, which was pretty upsetting.
You do have a great start though, I have a 90 gallon as well, I really enjoy the dimensions of the tank (good balance of dimensions vs power of lighting/equipment needed).
If you absolutely can not get the fish out tonight, try to dose it with stability (i think thats what its called) it might help, but if there's ammonia, theres a good chance you will lose fish.