http://members.aol.com/_ht_a/Kmam1/MyPond/Sex.html

Good example Koko, thanks!! I still can't tell with so many of my fish! I'm pretty sure that I've named them all wrong though... <_<

Hi koko great! I was wondering how to sex them. How do you determine sex in koi? Do you know? I have both. Also I LOVE your woman and koi pix! Can you tell me where you got it from? Thanks, pondgirl. My email is : alison19782004@yahoo.com

Out of all the fish that I have had, I thought that I knew for sure that my gold lionhead was a male. It always acted to "tough". Then one day eggs started falling out of her. I am going to use that picture from now on to figure it out!! Thank you koko!!

oh, so thats how you see the difference between male and female

thanks koko for that!

Neato koko. I thought that you could only determine the sex when they were getting ready to mate. But it's good to know that you can whenever. I'm guessing as long as it's over the age of three ??

Robyn

gah, i can't see the picture anymore can anyone repost it?

yeah I can't ee it either and I was hoping to pop in here and see if I can tell what I've got on my hands.... will have to look around a bit more to see if it is somewhere else....

fixed

thanks koko

Another way to tell males apart is by looking at the front edge
of their pectoral fins and their gill plate covers. A mature male
will have little white bumps or dots (not to be confused with ick),
and the fin will be thicker on a male, while the female's will be
thin. Another thought is the male pectoral fins will be pointy,
while the female's pectoral fins will have a rounded shape.
Normally, fish become of age around 2 years old. Some
show signs earlier than others though.

I'm having trouble telling if my fishie is male or female. He has the right body...I think....for a male, but the.....hole.....ya.

Ill get a pic in a minute.

Thank goodness i found this topic! i just a min ago bought a new goldfish and didn't know what to name it, now i know what kinda name, yay!!!!

Wow...GREAT PICS!!!!!

Great pictures, but I still can not tell. I can not visualize any hole on the underside of my fantailed. Perhaps it is a female and located lower between the fins and that is why I can not see it. There is an awful lot of tail in the way. I do not see any white spots on the gills.

Wow.. great pictures thanks i might be able to tell now which of my fish are male or female

Great I just realized my fish named Barney should be Betty oops! hope she dosn't get a complex!

Could breeding tubercles be present/visible on the first spine of the dorsal fin?

I am havinf trouble with all the other indicators of genser - GN lives alone in his tank - so by no thaving females around, maybe he doesn't really go through the "spawning" thing? Like, it would be a reaction to female hormones in the water - but there are none, so how can I tell if my fish is a boy or a girl?

I want to figure it out for certaina s I am thinking of getting another fish and I don't want any fry! Thanks!

Thankz guyz!!! BUBBLES IS A BOY!!!! WOOT WOOT I always knew he was a lil on the maucho side hehehe!!! Ok now I gotta find me a girlfreind!!! hehe altho is it all the same in all goldies?? It is different for diff kinds I am only interested in bubble eyed fish......................???

That is a big help...

I think I've named Rosemary wrongly, though. Darn.

thank you very much ... Now I go and try to breed one

Mine were easy to name, Valentine and Cupid, so they can keep thier names whether female or male, lol
Valentine has a heart shaped black spot on its head, so Cupid was easy to name after that, and add in my albino Placo named Red it all fits, hehe

umm... i was just wondering, because i just got 2 comet goldfish about a week ago and I cant tell what sex they are, one is light orange and has black splotches on it's tail and back fin and its tail is very short (thats shadow) and my other one is darker orange and has a very long tail fin shaped like this <(thats goldie) anyway i will put a pic of shadow and goldie l8ter cause i dont kno how cause its in my documents and it dosent have a URL and the board will not let me if it isnt a URL so if one of u guys could show me that would be apriciated

I GUESS ILL GO AND TRY AND SEE WHAT MY FISH ARE THEY JUST MAY HAVE THE WRONG NAMES NOW EVEN THOUGH I THINK THAT ILL STICK WITH THE NAMES THEY GOT THX THAT PIC WAS NEEDED

I don't think I'll break the news to Spike...He'd be so ashamed!

I had a fantail Manny that I had to rename to Manuela... lol.

Now I have two Ryu's under the age of one and a fantail under the age of two with boy names, I guess I'll have to wait and see... poor fish! I'm confoosing them!

With my old fantail Pedro I could tell b/c of the breeding bumps. It was in the spring.

Hello all I am new to the goldfish thing, by comin to this site, i sure have learned alot. I have goldfish...2 which are blk moors which are my favorites. One blk moor(my fav) is blind. I have to hand feed him so I know he is eating, But I love havin the little guy. I dont know if its a boy or girl tho.

I still can't tell if my two shubunkins are a boy or a girl because they are too small.
Is there another way to tell if it is a boy or a girl?



Well if you refer back to Koko's first post that might help and depending on breeding season ladie fishes get
bigger then the male fish does. If that helps.

So after reading this, I found out that my Moustachio and Jacques are girls and Belle is a boy, so maybe it's time to find out new names!

Very good pictures. Only all my goldfish have a single anal fin. So I'm still confused. At what size do they become sexually mature? I don't want fry because I think all my fish are related and inbreeding isn't a good idee.

um, hi i have got 2 fantail gold fish one is a calico and the other is just a red and white one.
im sort of just starting with fish and ive had some before but theyve all died like just sank to the bottom and didnt get up, one actually got mawled by the others!!!
but im pretty sure my calico is like pregnant or something as it's (i dont know the sex) got a huge protruding stomach but the other one is fine with it, its a perfectly normal fish
how do i know if its pregnant or if the other one is a boy or just anything plz im really stuck and i dont no wot 2 do can u plz help me any1?
post back soon plz

love Danirox

thanks mine nots old enough but ill def be lookin

i still cant figure out the genders of my goldfish..i got em on my bday! ..i dont even know if they r common ones or fancy ..i would be glad if someone could help me with this

also, a few weeks ago,my younger fish had black outlines on their fins but now they've vanished n its golden now..and the older fish had turned black n is back to golden ..is it normal fr them to change colors?

and yeah..please suggest some good neutral names for them

Hey aries,

Goldfish really aren't meant to be kept in tiny bowls. They need 10 gallons or more EACH. For two fantails, like you have, you need at least 20 gallons with proper filtration. The black color-changing you described could be ammonia burns. I suggest you read about the nitrogen cycle.

The sex of your goldfish really isn't an important issue at the moment-- you should give your goldies what they need to be healthy first. There's an overwhelming amount of info on the board, so start with this article to understand the basics.

Good luck!