Sour Tangie

In hydro classic overwatering signs like droop point to O2 levels as well. Is it possible the airstone became disconnected or is getting clogged from tank sediments? Really only other thing I can think of is possibly a humidity spike depressing respiration.

If you can see you getting a good yield from her then yeah keep her on but if she is stressed out all the time is it worth her herming on you and filling your tent with male pollen forcing you to clean everything. Or if your not gunna get a worth while yield from her then its just wasted nutrients and grow time if you ask me then chuck her but ultimatly it is going to be upto you its your plant now im not gunna sit here and says shes gunna be the best plant yet cause that would be a lie looking at the pictures if it was me I would bin her and start again but as Ive said this is your plant pal you do what you want :)