2006-08-11 13:20:09 · 13 answers · asked by Anonymous in Pets ➔ Fish
It depends on the species of the fish. On live bearers, the male will have a long skinny fin on the bottom of him by his anus. The female fin is broad. The male's fin is skinny because he has to put it inside the female to get her pregnant. She doesn't lay eggs, her babies are formed inside of her, and are born ready to swim.
On egg layers most of the males are more brightly colored because they have to impress the females.
When I had Cory cats breed in my tank, I looked straight down on the fish. The females where wider, bigger and fatter looking then the males.
Goldfish females get rounder in the spring before they spawn, while the males get white bumps on their gills.
On a lot of egg layers, it is almost impossible to tell the sexes apart if the female has the same color and size as the male, and isn't heavy with eggs.
What kind of fish do you want to know about?
2006-08-11 14:54:41 · answer #1 · answered by Amanda J 3 · 3⤊ 0⤋
It depends on the species of fish.
With some species the differences between male and female are very distinct, while in other species it's practically impossible to distinguish between the two genders.
2006-08-11 14:09:20 · answer #2 · answered by Kay B 4 · 1⤊ 0⤋
The one laying the eggs is female ;-)
Depends on the species. Male gulpys are more colorful. Male swordtails have a "sword" on their tail, while females do not.
Ask the person at the pet store.
2006-08-11 13:26:52 · answer #3 · answered by Randy G 7 · 1⤊ 0⤋
Thats difficult really as it depends on the color of the fish the brighter its male lighter is female thats how i can tell.
2006-08-11 13:23:58 · answer #4 · answered by intelligentshyunique 2 · 2⤊ 0⤋
no matter if it truly is a livebearer a lady would have a round fan like anal fin and a male would have a genopodium or a immediately anal fin. if egglayer suited i now could be women folk are wider at the same time as considered from properly. could help if i knew the call of fish.
2016-11-24 20:55:54 · answer #5 · answered by janzen 4 · 0⤊ 0⤋
usually the female are smaller than the males
2006-08-11 15:32:08 · answer #6 · answered by wwefreak36 1 · 1⤊ 0⤋
The males have colorful colors. While females are more dull looking and have darker colors.
2006-08-11 13:28:14 · answer #7 · answered by Jennifer S 2 · 1⤊ 0⤋
There are several ways to tell, varng on the species, but usually colors, fins, and body shape are the main differences.
2006-08-11 18:17:19 · answer #8 · answered by Anonymous · 1⤊ 0⤋
The pretty ones are male.
They are like the oposite of people if that make scence.
2006-08-11 13:29:55 · answer #9 · answered by position28 4 · 1⤊ 0⤋
colors. guys are bright and pretty, while girls are dark and dull. unless its a goldfish...then i don't know. but if its a betta, then it will have big, colorful fins for a boy, or it will be small and no big fins but still colorful for a girl
2006-08-11 13:31:03 · answer #10 · answered by Anonymous · 1⤊ 0⤋