Lights Out..

[Hairytank]

Well, I came back from a 3 day business trip to find the lights on my mixed reef tank had not come on for the entire time I was gone...malfunction of the timer/user.
Everything appears to be doing OK, but the corals were not abundantly happy for obvious reasons. I have fed them Coral Snow and Reef Plus Vitamins and Amino Acids.
Is there anything else I should do to try and “make up” for this..other than turning on the lights of course.