Help with sexing my goldfish?

mahalo

I just got 2 new Goldfish, and I really wanna know which sex they are.. I think they're rather young so it may be hard, but I hope you can help me see from these photos which sex they are:





Also, is there any way in seeing by their picture how old they are?
The white one is about 4CM long(with tail and all), and the orange one is about 5 CM.. Are they fully grown or will they get bigger?

Lupin

Welcome.

Those fish are still juveniles so you'll have to wait. There is no way sexing them as adults either. It is more disintguishable when they are in breeding season with males developing tubercles(like pimples) on their gill covers whereas females are plumper. Don't suspect dropsy if you see unusual behaviors of chasing around by males with tubercles seen.:)

mahalo

Okay, thanks so much! :) Juveniles, meaning how old circa?

Lupin

Most Goldfish become sexually matured in a year. You have to be patient on them. Your Goldfish can reach 6-8 inches in the best water conditions.

musho3210

out of topic, is it in a bowl?

mahalo

Yeah it is, only temporary though, i'll be getting my tank within a week or so.. :)

musho3210

k, good to hear that you are getting a tank, i hate telling people about bowls but sometimes you just have to do it to teach people a lesson