Do you have a complete stocking plan laid out yet?
Did you do a large PWC
after all the readings were at 0 for a week, then test again? Just stating an accepted plan...
I take it you don't have a QT tank yet. I would suggest getting one (doesn't have to be big) and using it for ALL future aquisitons. Getting Ich in a 125 with 18+ pounds of LR
and 8 - 10 fish is not fun (from personal experience).
Remember to GO SLOW as "Nothin GOOD ever happens FAST in a salt water aquarium" That includes stocking it. So please wait a month before adding any additional livestock.