My fittonia (nerve plant) is starting to get all dry around some of its bottom leaves. Her soil is still moist and I water her well, so I don’t think it’s an underwatering issue and she hasn’t drooped at all since I got her. She’s also always been in a well-sunlit room but out of direct sun, so I doubt it’s scorching. I’m not entirely sure what I’m doing wrong but I want to make sure she’s getting what she needs. It’s minor now, but I want to try to figure it out before it becomes a more major issue. I am considering that it might be low humidity (even though I do have a humidifier running in the room) or it might be something to do with water quality, and I have also been concerned I may be OVERwatering her (I don’t think that should lead to leaves drying out though?), but does anyone have any other ideas or advice?