Wilted arrowhead philodendron
I am office plant-sitting for my brother and I sort of took a bit of extra time off over the holidays and forgot about his little Nephthytis/Arrowhead plant. Today I came in and it has all gone completely limp. It is not dead (yet) but it is quite sad and floppy looking (see attached).
I am looking for advice on how best to help the poor thing recover from this neglect. I have given it a good watering (but not allowed it to sit in any) and now I am just crossing my fingers... is there anything else I can do?