brassavola nodosa

[dragom]

I have had this a few months maybe longer the mind is not as sharp as it used to be well anyways. I have noticed over time it seems like the leafs if you want to call them that kind of rot off at the bottom of the plant. I have a picture that will show it better then i can explain it. When I got it it was in a basket with just sphagnum moss I left it in it thinking it was ok. I have taken if out and put it in orchid mix with coconut husk hoping that will stop. Has anyone else had this problem am I doing right to correct this problem?? What else can I do. Here is the picture of one of the stems. The yellowish end is the bottom.