It will probably be a bit of intestinal lining. This is usually caused by putrid water. I would hazzard a guess that you are probably doing something very wrong, and suggest that you read and follow the information that follows. The basic rules of fishkeeping are . :- 1 inch of fish needs at least 1 gallon of water. (1 goldfish needs at least 10 gallons) :- Every tank needs a pemanently running cycled filter. :- Every tank needs to have at least 50% of its water replaced every week. Keep the fish at the correct temperature for their species and feed them morning and evening as much as they can eat in 15 minutes remembering to never let food rot in the tank. If you do all of the above then your fish should do OK. I can guarantee that failure to do any one of the above will result in your fish getting sick and haveing shortened lives.
There is no pink goldfish. However, there are pink tropical fish.
I don't know, you should probably go see a doctor, if you think it's really bad!
ANSWER=It's possibly a pimple. Or perhaps a sebaceous cyst?
Goldfish to not kiss each other. They may play, or bump into each other, but they do not kiss.
A pink dolphin has a thing that looks like a big bump on its head and it is much bigger than the ordinary dolphins we see today they, have long bodies too.they swim in saltwater.
it couold have been or as goldfish have no memory it is likely it either had a problem of its own or had got used to having another goldfish to bump into that it didnt realise it wasnt there.
It is quite possible that you have a water quality issue and need to change at least 50% of the water in your tank, or your goldfish is showing early signs of Hole in the Head; you can get medicine to treat this at your local fish store.
No butter does not cure a bump on the head, but try spreading it on your toast it tastes great.
what does it mean if you have a bump on your head
thats its nipples
Bump on head
no