I'd wait 10 to 15 minutes. For future reference, only take out around 15-25% of the tank water for weekly cleanings, leaving the goldfish in the tank. It helps them deal with the temperature change better.
I don't know if it is normal or not, but my sister had goldfish that would jump out of their tank when she would walk into the room. She would have to scoop them up and put them back in.
it depends on what type of fish.a goldfish has to be in room temperature water.
You can, but you should probably make sure you have it at the right temperature for them. I'd say just get it back to the temperature...(Could take a while) them put them in.
Goldfish have pharyngeal teeth which are near the back of the throat, so they may chew their food in some way, but not the same way that humans or animals with normal teeth would
Goldfish shouldn't be living in a bowl, they'll have a really bad life and wont live long at all. Just scoop some of the water up into a spare tank or something with the goldfish so it can stay there while u clean it. Then just rinse it with normal water and use the special goldfish cleaning spray. then fill it back up, and tip the goldfish back in carefully. When i was little, I had a goldfish in a 10 liter tank... pretty bad but id say that's the smallest ONE goldfish should ever be in if you want it to last >_<
5 hrs
No, it shouldn't do. As long as you get them back onto their normal food them should be ok.
If it does that it's dead
The snack that smiles back
no no no
Goldfish usually do not eat their own feces; sometimes they confuse it with food, but they will normally spit it right back out. It won't harm them since it's basically the byproduct of the food you feed them, but make sure you are cleaning your tank every week with a water change to remove all the waste.
People consider Goldfish as good friends too. But they are fishes and cannot socialize back.