If it's gills are not moving water anymore, it is dead. If it is shocked, either by a fresh water change or some other shock to it's system, it can lay on its side to rest or take a break. Always remember to let tap water sit in an open bowl or pot for at least 24 hours to let the chlorine in it evaporate before adding it to any tank or else that will cause them harm.
if it is not swimming and it lays on its side then it is dead.
When their swimming upside down its usually a sign that their dying
yes
it stops swimming
Goldfish do lay eggs. The eggs will attach to something in the tank or bowl until they hatch.
The female lays eggs, which are fertilized outside the body of the female. Goldfish do not have sexual intercourse.
it lays about 10,000 eggs at once
One lays eggs; the other fertilizes them.
It depends on what kind of goldfish; normally, you just have to wait to see who lays the eggs to find out the sex of your fish.
oh yes, definitly!
you will see little things that look like food, but clear!!!
Because your goldfish is dead.