The fight against ant colonies is never easy, because as long as the queen exists she will continue to bring more and more workers to life, so for greater effectiveness it is necessary to look for the place where the colony was established, because usually the queens do not leave the nest. Something that is usually useful to control their populations is to use baking soda but combined with sugar, water and a little flour, make small balls with the mixture and place them in the places where they are most seen.

On the other hand, the photo of the ant is not very good to identify it, as far as I can see they are very small and it would be necessary to observe certain structures of its body with the help of some equipment (microscope, magnifying glass, etc). However, maybe your conclusion as a Monomorium cf minimum is not so wrong, as it could be one of the species of that genus Monomorium.

Very creative this post @agmoore, the ant problem had some inspiration to add it in the collage 😄, nice reading you and sorry I couldn't help with the ant identification. Hope all is well and that the ant problem is solved at your place 😃.