I'm a ponytail palm fanatic and could not resist picking up these two PT's at my local Wally world (on sale for $5 from the original price of $10) about a week ago. I haven't watered them since I got them (at the time the soil was quite wet - maybe /too/ wet). Can anyone confirm for me why the fronds on the one are starting to yellow (the entire plant was quite healthy looking when I picked it up)? And on the other, why the fronds are a very, very dull/pale green? FWIW, they are both in front of a east window (one is a three-four feet away, the other maybe ten feet away) and the 'trunk' of the PTs are both firm.
The third image is of a prayer plant that was flourishing for years but has recently declined. It's in front of an eastern window now (it was moved to a western window where it rapidly declined). If anyone can offer insight into why it might be declining or if it's a lost cause (or hopefully what can be done to save it) it would be very much appreciated!