It has been quite busy on a weekly basis ever since last winter when I brought in three gold fish out of my Lotus Ponds to keep them from freezing to death. They thrive and gotten pretty big. It was not intention to keep them indoor, but it became a house pet along with three fan tail gold fish. And to my surprise, the fantail gold fish have been laying eggs every 2 to 3 weeks!. The first group had 40 some frys. But unfortunately after several weeks of trying to grow them, because of my lack of knowledge, one by one, they disappeared.
And I also understand now why the aquarium section's staff always asks how large is the tank for the goldfish that I am buying. Thus far, knock on woods, these fancy tail goldfish have been quite lively since last spring. The comet orange goldfish keeps on growing and they need to go back out this late spring to do their job.... eat mosquitos... I think... but maybe not. The Calico short fancy goldfish is really strange. I found out that it is blind or it got blind. It even got so fat in the belly that it lop sided up side down and so forth. Then, I found out that it is "pregnant" and other fish were chasing it so aggressively that it injured it?? That's when I transferred all the fancy tail to a different tank. Then, it laid eggs.