Going limp is normal , and the lights out for a week is not soo worriesom just yet
.Your tank is mid matured but it should have been closer to the 1 year mark for that addtion .. I am not sure of the lighting you have it does not sound like it is nearly enough .. It is a power compact light from your discription .. either T5 or MH
or T5 /MH
combo is recomended . You can try to feed it every other day with bits of clam , oyster or silver slides just a bit at a time tho so you dont foul your tank up .. and also so as to not stress him more than he is ... The lack of lighting will do more harm than the week with out lights ... Feeding likely will help.
What color is he and has that changed from your purchace time . How long have you had him ?
Please learn to do testing and perameters as I am going to ask for those
What I am requesting are basics .
What are the other specs flow , filtration and other inhabitants ..
IF it dies it can and likely will nuke the tank .. How big is he ?
Moving him will be futile as they have a foot and can move on their on accord .. Just return to your regular lighting or take it to 1/2 what you have it at and add a bit every few days IE if you run your lights 12 hours cut them to 6 every 3 or so days add an hour to make it 7 till you are back to your 12 ... DEEP breath in you can do this ..