Hello. Slugs don't like to crawl over, not crushed but very small pieces of egg shell. Put the egg shells around the edge of the pot on the ground around your pot. Slugs don't like to crawl over copper. Most garden stores will have copper that comes in long strips, half inch wide. Slugs come out at night. I once asked a organic gardener how they get rid of slugs. They said, " I go out at night with scissors and cut any slug I see in half. Put the cut up bits around the area you want to protect. Come back later and cut all the slugs you can find in half. For some reason they make their own best bait". Good Luck. Chuck.