When the lights were out he was stretched way out, as soon as the timer kicked the lights on, he kind of sucked back in. But I've noticed that he's done that before.
That seems like normal light shock in the am.. Ya know how it is when you wake up and turn on the lights real quick its kinda hard to open your eyes for the first few mins.. Thats the way that I can describe that.. As for your levels They all look like they should be in check.. I would watch the levels closely and do your water change tonight like planned.. Keep a close eye on the Apple.. It might be something that bothered him in that area at night ect.. I have no personal experience with them but I have read alot about them as I wanted one until I found that the bad vrs the good was not worth it in my case.. If your SG
is tested with a normal plastic Hydrometer you are probably pretty safe where you are.. however if it was done with a refractometer then you want to bump it up to about 1.025.. The plastic ones can and have seemed to me to read a bit low... I will let others chime in with their opinions as well..