ya i think its stomatella snail too BG. They tend to move a bit faster than reg snails... and no big hard shell on their backs, small smooth softer shell on their back...in the light they kinda shine or glossy lookin on the top... herbivore i thinks...
So not a bad thing? It just slowly moves around and can REALLY blend in with rock. It can make itself look like it is just a small bump on a rock. Other than that idk because I have only seen it twice. It can also move around off of a rock and kinda just barely hold on with just it's rear portion holding onto the rock
Mike Hayes