I have several indoor Bonsai (it would be difficult to keep them outside at this point) and on almost all of them there is a patch of moss covering perhaps a thrid of the surface area of the pot. On most of my bonsai pots the moss has gone brown. They all get sunlight but not direct as they are in a plant stand in front of a large glass sliding door. I also spray the moss every other day with water ( I water the Bonsai at various times but none on a set schedule).
My other problem is that I have a Ficus Tree the has a beautiful twisted trunk and some exposed surface roots (large) I recently noticed that some mold has appeared along the edges of some of the roots. I have had this tree for 6 months and it has been fine up to now (I water it about every 4 days from the top).
Any advise you all could give me would be greatly appriciated. I will attempt to post some pics tommorow.