I thought that it might be a result of water standing on the leaves, but I've been very careful not to mist it. Not to mention, it completely died very quickly in my grey tree frog viv, where it is a bit drier. It is in one of the shadier parts of the viv, maybe it needs more light? I've had it for about a month now, and it was pretty leggy and unhealthy looking when I got it. I just cant get it to be happy. Maybe I'll plant it in a separate area out of the viv environment completely and see what happens. I remember my grandma growing these very well as a houseplant.