After Googling your suggestion, I have to agree. It's currently in an office setting, under fluorescent light 24 hrs a day (the light in my office is left on for security). Any tips on caring for it? I suspect I may be overwatering, but the unglazed pot it is in dries out very quickly. Should I fertilize?

I can't see any obvious yellow leaves in your photo, so perhaps it is just normal leaf shedding where your plant is shedding old leaves. In general, you do have to be careful not to overwater these guys. Because they have fleshier leaves, they tolerate underwatering a bit better than leafy plants. I let my potting mix dry out a little (but not as much as I would with succulents) between waterings. My Peps tell me they are thirsty when their leaves start feeling a little floppy. I've heard they'll tolerate low light, but I haven't tested that out myself. If it's not getting as much light, you'll probably have to water it less as well. I'm still a newbie to fertilizing so I'll leave that to someone with more experience to answer.

Pls confirm there's a hole in the bottom of that pot. If not, there will likely be problems. That pot looks way too deep for that plant, esp if it's a Pep.

No fertilizer, not yet, didn't you just buy it?

In future, I'd pass on buying from folks who can't identify what they're selling, just not sound practice, even if cheap.

That is a peperomia, one of my favorite plants of all. They root in water almost overnight, they will tolerate light or full blast sun. I have one in a north window, one in the south, both in 511 mix, another in water, I LOVE this little cutie.

it will tell you when it needs water by getting "loose leaves." That is, they won't feel turgid. Mine went crazy in a bark and perlite mix, and it tolerates drought too. It does better with regular watering though.

if you ever lose a limb, just plop it in water. Also, it grows from any point where it's broken--any.

here are my two (in southern window):

There is a hole in the bottom. The picture might be misleading, but the pot is only about 4.5" tall. I can re pot to smaller if that would help.

I typically have been watering only when the leaves start to feel wilty, but lately, even after watering, they feel this way. The leaves have also lost some of their luster. The yellowing is mostly visible from the underside of the plant, the upper leaves are still green.

I purchased the plant in March, and have not fertilized.

Did you repot it at any point after you brought it home? Have you had a peek at the roots? What kind of soil is it in? I wouldn't worry about fertilizing yet til you've ruled out any root-related/watering issue.

I agree, you are gonna need to take a look at the root situation. It sounds as if it is root bound or not drying out properly.