Well, I've got a couple tanks without frogs in them yet. I've been growing them for a while waiting until the broms were fully attached to the back wall before sticking any frogs in them. Things seem pretty good and I was planning on sticking some frogs in soon, but have noticed that they are slugs in one of the tanks. And not just a couple of them, they've been breeding in there and I've seen a lot of tiny slugs slithering around. So is this a problem? My greatest fear is that the slugs will eat any eggs they may come across. Is there any good way to get rid of them? I guess I could maybe stick a saucer of beer in the tank.