I have two slugs in my viv. They have lived a lot longer than I thought they would. They seem to help a little with just a little damage to plants, a couple of holes in some of my plants with bigger leaves. Earth worms are great to. Good for your soil! I would not recommend getting them from out side. They are so cheap just buy some. I also have added some super worm beetles. They love to eat the poop! Helps keep things clean. But the spring worms would help a lot too.

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