I have 3 types of ants in my house, 3 sizes. The smallest ones ( barely visible, 1/16" ) love the product "Protectall" ( active ingredient Orthoboric Acid ) which they take to the queen and in a matter of days they disappear for months. Then I have medium size ants ( about 1/8" ) and a large ( 1/4" )type that are aware of me and only come out at night. I tried "Protectall" and "Terro" ( sodium teraborate ) to these 2 types but they don't eat it. I tried to find Boric acid ( part of the above 2 products ) and mix it with food or honey but no1 sells it around here. I sprayed all kids of products but those work for just a few days. Any suggestion for removing the colonies?