How does everyone keep ants from invading tort pens? Do you worry about it or am I being silly? I put Boulder in my front entry way everyday and block it with bricks, he is there at least 4 hours a day. It is ideal until we build a permanent outdoor pen in the back yard. He is only out there when I am home. This am I thought well I will give him one bite of fruit, he has never had any before, when I went to check if he was eating it, he was away from his dish and red ants were all over the fruit! I threw it out of the pen to try to get them to leave. So I was wondering what do you all do for bug control if anything?