how can you tell if a goldfish is a girl or a boy?

Question

i have a bunch of goldfish and i want to name them but i cant tell if they are boys or girls. how can i tell?

Answer 1

You won't be able to tell until they're about a year old. Males, in spawning condition will have white dots (breeding tubercles) on the gill covers and along the front edges of the side fins. There's also a difference in the shape of the vent (anus).

Some other ways are mentioned, such as body and fin shape, midline ridge, and behavior, but these aren't terribly reliable.

Here's a link whith photos of what to look for: http://www.bristol-aquarists.org.uk/goldfish/info/sexing-fs.htm

Answer 2

* the female Goldfish are slightly larger than the lads and look even heavier in the tummy while they're packed with eggs. * Male Goldfish improve white spots on their gills and pectoral referred to as “breeding tubercles” for the period of spawning time. * men have midline ridges on their undersides beginning up from the lower back of their pelvic fins and ending at their vent establishing. this selection could be absent or smaller in women individuals. * men have employer abdomen on an identical time as in women individuals; the section between the pelvic fins and the anal fins is greater pliable. * Male Goldfish have longer and pointed pectorals besides as stiff fin ray, on an identical time as women individuals have greater rounded pectorals and shorter, finer front fin rays. * Male goldfish have smaller and greater oval anal openings and the anal fins at the instant are not as thick as that of the female goldfish who has a larger and rounder anal establishing with a elementary protrude. The anal fin is likewise thicker. * The spawning time is the simplest time to tell apart the lads from the ladies. the female establishing will look larger and greater swollen using fact the eggs start to ripen. She could look enormous and heavier. considering that fish reproduce via exterior fertilization, you're able to make out while a male is waiting by the white breeding tubercles and you are able to unquestionably push out the milt via his ventral establishing by working a young finger alongside his factors. * there is one greater obtrusive, yet form of time taking thank you to make out which one among your fish is male and lady. discover out who's chasing who – the chaser stands out as the male and the chased and drained out one stands out as the female! It’s the organic tendency on element of the male goldfish to chase and nudge at a woman’s rear section.

Answer 3

usually, a boy fish has a higher dorsal fin than girls. For the girls, they have rounded tips on their fins.

Answer 4

copperhead's answer is right, but if you keep th fish indoors, you might never see the tubercles. they're more prominent in fish that are exposed to the four seasons. i.e. outdoors

Answer 5

mature males with get white pimple like things on their gills during spawning times.

more info here...

http://petcaretips.net/sexing-goldfish.html

Answer 6

You cant on some fish