I am sorry to say that everyone here in the fish hobby will tell you- goldfish do not belong in bowls. Not in 10 liter bowls, not in 3o liter bowls not in any bowls at all
Each goldfish needs 10 US gallons of water. And a tank that has a dark background or at least some shade. Goldfish have no eyelids you see, they cannot close their eyes and become stressed in situations where they are watched from all glass sides in bright light. Goldfish are fish not ornaments. Fish like to
swim and should be allowed and able to swim in straight lines
not in circles.
I hope you can find a large
tank very soon for beautiful Betty