I recently set up a new terrarium, and to my surprise the common black ants that invade my house in the summer have discovered it. They seem to have built small ant hill under my phal leaf and i'm worried that they might soon move their queen in if they haven't already done so. My questions are, has anyone else ever experienced this, how was it dealt with, and what are the potential consequences of their presence? I want to deal with this as naturally as possible and preferably without disturbing the recently planted terrarium. I can provide pictures if that would help.