I have had the ant farm for a while. I don’t think it is a healthy environment any more for the ants. They are starting to die and it looks like mold or some fungus has started to form on them. The ants have created a cemetery in the corner and they pile up the dead bodies there. The instructions say to remove the dead ants from the ant farm but I don’t see how you can do that without tearing up their other tunnels. There are a few live ones left but I don’t think they are going to be around for much longer. It was fun while it lasted.