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 Can you sex fry?

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pogie
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PostSubject: Can you sex fry?   Wed Oct 30, 2013 6:10 pm

Is there a way of knowing what sex a BN will be when they're fry?

I can see that my first batch, now that they're about two months old, are clearly two different sizes. Some significantly larger than others. I'm wondering if the larger are males and the smaller females?

I wonder mostly because I would like to keep one albino male if I have one, and a common female perhaps. (though I'll need a third tank.... oh well! Very Happy Very Happy )

Any hints, tips or suggestions?
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fishlady
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PostSubject: Re: Can you sex fry?   Wed Oct 30, 2013 10:37 pm

size no i have a male here that is half the size of some of my females
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Doug
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PostSubject: Re: Can you sex fry?   Thu Oct 31, 2013 1:24 am

nope, sorry. You generally have to wait til they are about 3cms and even then it is still a solid guess. 5cms is where is becomes apparent

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johnpaulgeorge&ringo
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PostSubject: sexing juvie bn   Sun Feb 09, 2014 10:27 am

I was told by another forum mate who had it on good authority that a reliable way of testing is if the top of the head is soft it's going to be male ..hard it's female.
Any one else heard that?
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kaban
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PostSubject: Re: Can you sex fry?   Sun Feb 09, 2014 12:17 pm

Did this mate have his head tested??? Wink


Last edited by kaban on Sun Feb 09, 2014 5:44 pm; edited 1 time in total
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johnpaulgeorge&ringo
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PostSubject: Can you sex fry?   Sun Feb 09, 2014 1:01 pm

Not sure .I'm keeping an open mind on his idea though.
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kaban
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PostSubject: Re: Can you sex fry?   Sun Feb 09, 2014 5:47 pm

Ok. Make an experiment and please let me know how did it go. How hard do I need to push to tell it's soft? lol! 
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Doug
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PostSubject: Re: Can you sex fry?   Sun Feb 09, 2014 11:36 pm

I have heard this too. I gave it a go but must admit i had no idea how hard to push and given that I was not wanting to smush the little fellas and they were already stressing at being out of the the water I gave it a miss. The few that I tried though i could not feel any difference. I had more luck with body shape when they were younger, used to run at about 70-80% right.

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3rd edition LOADS OF INFORMATION, PICS, DIAGRAMS AND BRISTLENOSE GOODNESS

GO TO www.keepingandbreedingbristlenose.com FOR YOUR COPY!!

Like my book - why not "Like" it on Facebook!
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PostSubject: Re: Can you sex fry?   Today at 4:59 am

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