I've had my nerite Sirius for a while now, I had him in my 10 gallon tank with my Betta but recently transferred him to my new 5 gallon. I've noticed in both tanks that he normally likes to rest and eat above the water. I've checked the water parameters in both my tanks and they are fine, even the hardness. About a week ago I got 2 mystery snails, one for each tank because Sirius never ate any of the algae. I noticed that the mysterys eat like crazy, while my little nerite is just so much slower than them and doesn't really seem to eat hardly anything. I'll post a video of what I mean, of him being slower. Is that normal for them, could he just be older maybe? I know he must be eating something though because he has poop above the water line.