Aiming4 Goldfish Care

I have 3 bubble-eyed goldfish in a 30 gallon tank. One of them is probably 2 years. His bubbles are about 1 3/4 inches in diameter. One of the bubbles is a little bigger than the other. Just recently he lays upside-down on the bottom for long periods of time. Sometimes hes swims upright. I [...]

Hi out there. I have 2 fish both young, 1 is a blackmoor and 1 is a fantail. My fantail goldfish (Nancy) has been swimming about as per usual, and then stopping for long periods of time. Also, i notices a strip of skin in the tank! What could it be? Or is she really [...]