So I have a pretty spazzy betta fish. From the day I brought him home, he was always super active. Lately, he’s still been active but seems to be floating more vertical than usual? If he stops swimming, he floats vertically. He also usually slept between the filter and glass but now he’s on the bottom. He still eats just fine and will react instantly to my finger up to the glass. At first I fed him twice a day then I went down to once a day. In case he was constipated, I tried to feed him daphnia but oddly enough he just spits it back out every time! Should I fast him for a day and see if this weird floating changes?