At what age to goldfish reach sexual maturity?

I have a young goldfish(15 weeks old) that recently developed breeding stars I asked the person I bought the parents from if this was normal and was told it was. Same goes for girls. Given proper conditions, females can produce eggs as early as 2-3 months old.

Although, if you are looking to breed, I would try to find goldfish that are atleast a year old.

Hope that helps

Thanks Abby I recently aquired a few comet goldfish that were previously all housed in a bowl. The poor things look pretty stunted but I don't know how long they were in there and if they will grow. The female has been laying eggs today, so I thought maybe that would help be figure out her age. The female is the largest with a 3" body. I'd rather not have them breed, I'm just curious.

well, my moor was 1 year and 2 months old when she layed her first set of eggs.