Sorry but can't tell from that pic at all, not good that's she laying on the gravel, are her fins clamped.
Fins not really clamped, possibly her ventral fins (maybe thats cause she has been lying on them). However she seems to have vanished since yesterday and have been searching through plants etc but not easy to locate anything. I fear the worse!!!! If she is dead I cannot understand where her body is gone (she was huge) and dont have anything capable of disposing of her over night! However there are a new group of ltiny fry left behind.