Sexing: Golds are difficult to sex. Although it *is* possible. The best and most accurate way, in my opinion, is the tubercules that develop on the gill plates of the mature male. They appear to be tiny white spots, you probably won't even notice them without close examination of the fish. Females also are usually a big larger fuller bodied. It is nearly impossible to sex a Goldfish accurately under the age of 1.5 - 2 years of age, even then it is quite a task.
