Hey all! I recently discovered a snail in my tank that I never added in there. I know fresh plants usually have snail eggs on there and suddenly your tank becomes over taken by the snails, thats why I never got fresh plants (plus I have horrible memories when I was a kid of my grandfather having me squash all the snails in his tank then takng them out). So...how the heck did the snail get in here? haha. I have all plastic plants, and no wood or anything that was alive at one time in the tank (except the fish!). I have 1 catfish, algae eater, 4 mollies, and 3 zebra danios in my 20 gallon. Any ideas how I acquired this snail and do they reproduce on their own? Should I get that snail out now?