Laura wrote:
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.


You could have intestinal gas or a swim bladder problem.
Do you feed your goldfish flake? I personally do not recommend it,
especially TetraFin. I recommend soaking any dry food for at least 5
minutes so it will sink and the fish will be less likely to get air in
its digestive system. I have used Sanyu and Hikari pellet food with
good success, I also recommend Brine Shrimp as a supplement as they
tend to be a natural laxative. I do NOT recommend worms for goldfish.
Another often forgotten water parameter for goldfish is KH. KH is
basically the buffering capacity of the water as it pertains to
Calcium, and Calcium is essential for goldfish (and many other fish as
well). Calcium is essential for osmotic processes and proper healing.
Magnesium (as contained in GH) is also important.

For more information:

http://aquarium-info.blogspot.com/

Carl