Any advice based on these photos would be most appreciated. Thanks!

Has it been getting any direct sun?
How have you been watering?
What soil do you use?
How's the moisture in it's spot?
Does the pot have a drainage hole?

[quote="Dciau1"]Has it been getting any direct sun? No, indirect.

How have you been watering? Once per week. Maybe ever 1.5 weeks.

What soil do you use? Indoor soil with some added perlite for better drainage.

How's the moisture in it's spot? Moderate

Does the pot have a drainage hole? Yes

[/quote

Sorry forgot one question: What location of the world are you in?

Illinois?
Are there more bigger leaves? Could this be loss of just oldest leaves (= not as drastic)

sallyg said:Illinois?
Are there more bigger leaves? Could this be loss of just oldest leaves (= not as drastic)

They are happening to bigger and smaller leaves. It's the strangest thing.

I've had the impression these are difficult and here's one site that agrees.
https://houseplantcentral.com/....

Never owned one- partly because they aren't that common these days and mostly because I think I've heard a lot of trouble with them.

What about cold drafts or heat since your in a colder climate, my windows suck in my apartment and the drafts are horrendous, I had to hang heavy drafts to protect my plants, especially at night when the temps drop, this morning it's only 9, burr baby