Catching a Snail Shell is NOT Easy When it's Floating!

There are empty snail shells all over my mom's tank, and one was at the top. I tried to catch it with my bare hands, and it was hard. I got it up against the glass and caught it, but when I tried to get it out it floated out of my hand! I tried like five times, and then finally I got it out. If you ever try, use a NET. As you can see, using your hands is not very easy. If you have snails, use a net to catch their shells!