My Xenia looks super droopy and "sad." She is turning a grayish color from her usual purplish hue.
Any ideas on her status?
It's really impossible to tell you anything serious, other than refer you to articles on the web. You really need to provide some information for us to go on.
How large is the system?
How long have you had it set up?
How long have you had the xenia?
What recent changes did you make?
Did you add any new livestock?
What livestock do you have in the system?
What are your water parameters? (exact readings please)
What lighting do you have?
What, if any, additives or medications have you used?