Can anyone tell me what is going on with this poor tiny thing? I brought it home from the grocery store a couple of months ago. it looked sad when I got it and hasn’t improved. The leaves are pitted with tiny red spots and dry patches on some leaves. I thought it might be spider mites so I treated the plant. I don’t see any mites or pests at all but even the new leaves have these little spots. It’s in a south-facing window on a pebble tray. I have googled and can’t seem to find any pictures of this particular issue so any advice would be appreciated!