My first tank crash

[Oilers]

My wife ran into the bedroom last night and yelled, "Come and look at the fish tank, the fishes are dropping off to the bottom like airplanes being shot out of the sky!". I raced to the tank and saw most of my fishes are lying on the sand bed, breathing heavily. The water looked a bit cloudy but not too much to be concerned about. I looked around the tank to see if one of my anenomes has committed suicide like one of the threads I've read on here. I finally found the problem in my sump tank. The water was cloudy and full of white foam. I was like, what the heck... foam?? Then I saw an empty Johnson baby shampoo bottle and knew what just happened. My three year old son has decided to give daddy little fishes a bath like the one he gets daily.
I did a water change (70%), changed the filter and carbon. I plan to do another water change maybe tomorrow. I performed some tests on the water this morning and all the parameters are back to the level they were pre-crash. Half of my fishes died but the corals seem to be doing fine.
Has anybody had a similar experience before? What else do I need to do? Should I remove my corals and the rest of the fishes and wait a week or two before putting them back into the tank? The fishes that survive are eating and breathing normal (except for the yellow tang but I think he's recovering). The corals are opening up and showing their colors well.