A Post I read from a couple of days ago mentioned using Boric Acid to get rid of ants... Boric Acid is poisonous & should NOT be used around animals! If they get it on there feet or fur they can accidentally ingest it by licking. I don't know HOW toxic it is in ferrets, but I would certainly not risk it. We find that ant traps work very well. They too are poisonous, but they are "self-contained" so we put them under a "protective cover" to keep them out of the ferrets reach. We have a metal "milk crate" where we keep papers, so we make sure it too heavy for the ferret to move & then put the ant trap underneath. Ants can get into tiny places & have no problem crawling through the carpet to get under the crate, but the ferret is safe. If the ants are coming in through a closet or cabinent that you can close securely, this would be an ideal place - just make sure that your animals NEVER have access. Ant traps are sold in most grocery stores & I purchased my last package at Ace Hardware. Please NEVER use Boric Acid powder around ANY animal (or children, either)! Thanks, Lisa, RPh [Posted in FML 5764]