Cleaner wrasse eating snails

[Jesshika]

I've had a blue streak cleaner wrasse for a few months now and in that time she never bothered anything else in the tank. But recently she is nipping at the nassarius snails all the time. I feed her flake and mysis shrimp often but even after she eats, she continues to pick at the snails. Why does she do this now and not before?

 

[BadRoma1]

mine did the same thing, but my lawnmover blenny was always really bad toward nassarius snails, worse than my cleaner wresse

 

[Catpicklesdog]

I have one and he's never bothered anything except to clean them. Maybe that is what yours is doing. Mine will even try to get the algae of crabs, probably because there are some "bugs" in it.