how long does gold fish lay their eggs.?

Answer 1

It takes about 2-4 hours for them to lay their eggs
I won't go into detail, but the following link does explain it in detai
http://www.goldfishinfo.com/spawn.htm


Hope that helps
Good luck


EB

Answer 2

Well-fed females will spawn twice, every 7-14 days, it isn’t a disaster if you miss the first spawn. The second spawn can be timed so that you will have a chance to catch the fish in the act, so to speak.

Here is a good reference website:
http://www.goldfishconnection.com/articles/details.php?articleId=40&parentId=2