My Chinese money plant is showing signs of overwatering (leaves curling under), but I only water it when the soil is bone dry all the way to the bottom of the pot. Is there potentially another issue? Could this a symptom of underfeeding or hard water? Some of my other sub-tropical plants are also curling under or getting brown scarring on the leaves.
The soil dries out about once every week and a half. My room retains heat very well, and generally the plant gets a lot of indirect light near to floor-ceiling window. The pot drains well. Just in case while looking into the issue, I’ve moved it under a plant light and placed the pot on a paper towel to draw out any additional moisture.