umm this might sound stupid but... i recently gold some large gold severums and maybe i never noticed at first.. but now i do.. their mouths keep opening and closing... when they swim... should they bee close? but itz constantly opening and closing. they dont seem to be gasping the surface for air, they jsut keep opening and closing as they swim normally... is this normaly? or iam i just tripping out watching them right now, and thats how they normally behave and i just havent noticed the first time?
