My lionhead goldfish stays at the top of the tank 24-7, has for 2
months, except for when he eats, and he eats good but soon as he's thru,
he heads for the same exact spot and just "hovers" there. He honestly
stays in about a 6 sq. inch space, on occassion he'll swim in a circle.
Should I be concerned? No visible problems either and no gasping. I've
had him a year. All water conditions are good.