I got four Jumbo Cerith Snails. These guys really dig up the sand. I didn't realize how big they would be. Anytime one of them grazes across a rock, it leaves a clean trail behind about an inch wide. They're pretty cool.
I like watching them too but also had the same problem. I have a couple of smaller frags that get toppled occasionally from a snail I have. I'm going to have to get some glue I guess. I don't like gluing anything because I occasionally rearrange them til I see where they are the happiest.
