First betta fish so I’m paranoid he’s dying every time he does anything, of course. Is it normal for them to sort’ve “attack” the glass? There’s nothing outside of his tank and he’s not flaring but it reminds me of angry glass surfing. He’s only been in the tank two days. He doesn’t flare at me or attack my nerites, so he doesn’t seem aggressive. Also, is it normal for them to rest frequently? He’ll swim around and then all of a sudden full STOP. sometimes mid-swim. Once he completely stopped moving when he was vertical because he was swimming up and just STOPPED. He also will just float at the top for a few minutes periodically. I’ve never had a fish that rests so frequently so it’s making me nervous.