It is okay to touch your goldfish to inspect for disease, or to check them for overall wellness. I do this occasionally with my fish. Be sure to be very gentle, and make sure your hands are wet with aquarium water so you do not disrupt their slime coat.
Do whatever you have to do quickly, and then put them back in the water.
I don't recommend taking them out and petting them. Handling them unnecessarily might cause them undue stress.
it will live
It will eventually turn white.
Then the goldfish will die.
Do Goldfish make good Pets to keep? Yes with the right equipment.
You are describing unusual behaviour for goldfish. Are you sure you have 'Goldfish' as in (Carassius auratus)?
Goldfish are omnivores and may eat smaller goldfish if they are hungry or if there is limited food available. It is not their natural behavior, but it can happen in certain circumstances.
The cheapest way to keep a goldfish is to keep it in a fish bowl.........as long as the bowl is big enough the fish will be happy there.
Yes. Separate them.
Rule of thumb is to not mix tropical fish and goldfish.
A goldfish can live in an opaque glass tank as long as you keep up with necessary water changes. Like a small outside garden pond goldfish are only viewed from the top.
Most people would keep goldfish in a bowl or tank, filled with water. You can always add scenery such as pebbles plants and castles :D
Goldfish are pretty easy to keep.