I bought a beta fish about a week ago and heās doing very well other than this one swimming pattern Iāve noticed. heāll go to one side or corner of the tank and go side to side quite quickly along the glass, I know that erratic swimming can be a sign of bad water quality but ive been testing the water every day since I got him and everythingās normal, Iām not too sure what else it could be, he looks physically healthy like his fins and his scales are nice and bright. There is a lighter green spot on one side but that was there when I got him so I figured it was just cool colouring but Iām not sure. I canāt seem to figure out how to link a video here so I canāt show any clips. Iāll put a photo or two though in case anyone can spot any physical symptoms of anything. it could be normal for all I know I am just not used to their body language yet. I am also quite paranoid so I could be mistaking it for nothing too haha but Iām not really sure since this is my first fish I just really want to do this right.