How do you sex a goldfish?

Answer 1

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the most postive way of identifying a goldfish's gender is during spawning time. the males will develop white spots on their gills and pectoral. they are called breeding tubercles. females will be plumper in order to store eggs.

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Answer 2

Boy or Girl?

How can you tell whether your Goldfish is male or female? You might want to know because you want to breed them, or give them the right name before Jack turns out to be the mother Goldfish! Here are some clues that might help you sort out the Goldfish boys from the Goldfish girls:

* The female Goldfish are slightly bigger than the males and look even heavier in the abdomen when they are full of eggs.

* Male Goldfish develop white spots on their gills and pectoral called "breeding tubercles" during spawning time.

* Males have midline ridges on their undersides beginning from the back of their pelvic fins and ending at their vent opening. This feature can be absent or smaller in females.

* Males have firm abdomen while in females; the area between the pelvic fins and the anal fins is more pliable.

* Male Goldfish have longer and pointed pectorals as well as stiff fin ray, while females have more rounded pectorals and shorter, finer front fin rays.

* Male goldfish have smaller and more oval anal openings and the anal fins are not as thick as that of the female goldfish who has a larger and rounder anal opening with a slight protrude. The anal fin is also thicker.

* The spawning time is the easiest time to distinguish the boys from the girls. The female opening will look larger and more swollen as the eggs begin to ripen. She would look big and heavier. Since fish reproduce through external fertilization, you can make out when a male is ready by the white breeding tubercles and you can actually push out the milt through his ventral opening by running a gentle finger along his sides.

* There is one more obvious, but kind of time taking way to make out which one of your fish is male and female. Find out who is chasing who - the chaser will be the male and the chased and tired out one will be the female! It's the natural tendency on part of the male goldfish to chase and nudge at a female's rear part


hope this helps in answering your questiion

Answer 3

males develop breeding tubercles (white pimples) on the gill covers and on the leading edge of the pectoral fins
females develop a deeper body as they fill with roe (eggs), and have a larger vent (just before the anal fin) than the males .... The males vent is more sunk in the the females. Also the males have wot is called a "hood" on top of their head when they reach the age of an mature Adult

Answer 4

Raise the water temp slightly (I'm talking 2 to 3 degrees). The males will begin to get this white pimple like bumb on the front of his head (there should be 2 bumps), and will begin to show his dingy down by his anal fin.

Answer 5

Look for the males penis that comes out when he urinates

Answer 6

Firstly, you must dress smartly and tak it to a nice place. Charm the fish with anacdotes and tales of romance. Ply it with booze. Then you will offer it a nightcap at your gaff. Once in the house, undress the fish slowly (the rohypnol should be working by now) and then you can sex the goldfish.

Answer 7

There is no good way besides waiting for one to become 'pregnant'... Female fish will become swollen with eggs. Males are usually 'skinnier'. Females are usually rounder around the belly.

Be warned that this is not a foolproof method, LOL!

Answer 8

I have found that some soft lighting a bottle a wine and some love music does the trick every time.

Answer 9

the males are more agressive in the summer than the ladies

Answer 10

A nice candle lit meal out. Then back home for a coffee and see what happens. Good luck.