Not sure how much of an issue mine have with slugs. I've been there a few times at night and occasionally see the odd slug or snail trying to get in but never for long. I was a bit slow starting filming so missed the first bit here but this is one of my nucs a few weeks ago. The slug had tried to get in but hadn't even got its head inside the entrance before being repulsed. I later tried to herd it back towards the entrance, even from a different direction, and it completely refused to, maintaining a wide berth on its way back down to the ground. Converted to lower resolution so it would upload.