Terro Ant Killer 2 day time lapse

Ants found their way into our house on the second floor through inside walls. I checked outside and I know they are coming in through the ground underneath the home. I used Terro as bait to have them bring it back to their colony and I also put a barrier of insect killer around the entrance so ants don't go searching around the house. this is a 36-48 hour time lapse