I don't have any ant colonies in formicaria yet (they are all still in the founding stage, in test tubes). However, I have noticed that regardless of the formicaria that is used (AntsCanada, AntsAustralia, TarHeelAnts, etc.) vinyl tubing of some sort is often incorporated in the connection of different areas --nest, outworld, watering area, etc.
I am wondering "is there a standard vinyl tubing size that is most often used across the entire anting hobby?" I understand that some people may say it depends on the size of ant you are keeping. BUT, is there a generally accepted/common size that is most often used?