Recently a friend gave me two large gold fish they didn't want anymore. The one kept swimming belly-up (upside down). I was told it was a sign she was going to die soon. I couldn't take it watching her struggle! What it is, is a sign of infection and it affects their balance and buoyancy. It can't be cured.
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I keep an old turkey baster next to my little fish bowl. Every few days I will use it to suck out some water and the dirts accumulated on the bottom of the tank and feed my plants.
My 2 year old loves fish so we set up a 10 gallon tank that we had found on the street and went to the pet store.
This is a page about what can I feed a goldfish other than fish food? Regular goldfish food is best for a fish in a bowl or tank.
This is a page about keeping track of fish feeding. Fish will often eat as much as you feed them so it is important for the fish, and the health of your tank, to not overfeed them.