I wanted to use the soil we used last year for our garden (pesticide and fertilizer free) for Hermy's outside enclosure. The problem is i saw ants in the soil (they were eating a piece of wood). We removed the soil with all the antz and the piece of wood. Can I use the rest of the soil that is left over (there is still a couple of ants in it but most of the are gone) for the enclosure or should I forget about it? I would guess they should leave because the piece of wood is gone?