The water will get cloudy is probably the biggest way to tell. Also if there is food floating around at the top then you are defiantly feeding them too much. They only should be fed for about 5 minutes a day and whatever they can eat in that time is good enough for the day. Get any uneaten food floating around to keep the tank clean and your fish healthy.
A goldfish may not physically explode if over-fed, or if too much air becomes trapped in their swim bladder as they are more likely to die from constipation or impaction before they could explode
too much
this happened to my goldfish once and we found out that it was doing this b ecause we fed it too much.
Yesh.
Cuz u fed them too much.
Goldfish will do fine in a fountain, as long as they are fed, and that the area is big enough to swim around and not all fountain! As long as the fountain isn't too powerful the fish will do fine.
a gallon is much too much, a standard fish can fill a regular and average glass bowl, a gallon! Totally enough, I tell ya, you, the questioner.
it either grows to be fat or dies.......i think
No.
Soil that has been fed too much water
maybe overcrowding, not being fed,and the tank too small. btw how big is it??
Your Goldfish is not pregnant it has a deadly disease called 'Dropsy'. So the prognosis is very bad. This disease is usually caused by the fish being kept in poor water conditions. There is no known, reliable cure for this disease the fish will die.