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Results 1 to 10 of 10
  1. #1

    Join Date
    Oct 2013
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    South Africa
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    Default Sexing Bloodfin/Rosyfin Tetra


    0 Not allowed!
    Hi guys,

    I have currently got 6 of these tetras and I am trying to work out how many males and females I have. So how do I sex them?

    For example...Is this one a male or female?

    And how does it look health-wise?

    Rosy Fin Tetra.jpg

    Kind regards,
    Rich
    My journal....Swimming in South Africa:
    http://www.aquaticcommunity.com/aqua...49#post1329449

  2. #2

    Join Date
    Apr 2010
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    Seattle Side of the Mountains
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    Default


    1 Not allowed!
    While I have not sexed these particular tetras, with most tetras there is a difference in body shape, in particular the thickness of the body between the males and the females.

    The females will be slightly rounder in the pelvic to anal fin area of the body for holding eggs.

    Based on that, your photo in my opinion is either a very thin female or a male.

    btw... this is definitely not a bloodfin tetra. (Though I'd not be surprised if the pet store did label it as such)

    I believe what you have is either a Hyphessobrycon bentosi / Ornate Tetra OR a Hyphessobrycon rosaceus / Rosy Tetra

  3. #3

    Join Date
    Aug 2012
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    Gods Country, Eastern High Sierras, California
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    Just pretend it's a cardinal, lol - Slaphppy7   Here's to 5 years, bud. - Slaphppy7   Thanks for the rep! - WhistlingBadger   Here is some coffee so you have lots of energy to get ready to order fish from Wetspot! - discusluv   16K posts! - Slaphppy7   
    Mourning - Anti-Gang - Melanoma - steeler1   Mourning - Anti-Gang - Melanoma - steeler1   Bone Marrow Donation - Childhood Depression - Depression - Environment - Eye Injury Prevention - Glaucoma - Kidney Cancer - Kidney Disease - Kidney Transplantation - Leukemia - Lyme Disease - Mental Retardation - Missing Children - Organ Donation - T - steeler1   Troop and Military Support - Amber Alert - Bladder Cancer - Endometriosis - Equality - Liver Cancer - Liver Disease - Missing Children - POW/MIA - Spina Bifida - Suicide - steeler58   Mourning - Anti-Gang - Melanoma - Slaphppy7   

    Default


    1 Not allowed!
    + 1 to Trillianne's good eyes that is indeed H. rosaceus (no shoulder patches) and it is a male, the hooks in the anal fin ID it.

    Healthwise; he looks very healthy.
    Last edited by steeler58; 01-07-2014 at 07:31 PM.
    Perfection is not attainable, but if we chase perfection we can catch excellence.
    Once you learn to quit, it becomes a habit.
    -Vince Lombardi

    Be more concerned with your character than your reputation, because your character is what you really are, while your reputation is merely what others think you are. ― John Wooden
    Sandy Hook Elementary......Lest We Forget
    See my profile for my tanks and what fish I keep

  4. #4

    Join Date
    Oct 2013
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    South Africa
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    For a beautiful tank :) - steeler58   Let's bump this school up! - Compass   I'll match Compass's neon! - steeler58   Now we're getting a shoal going! - Compass   A NUDDER WUN!!! - Compass   

    Default


    0 Not allowed!
    Perfect! Thanks guys!

    To be honest I couldn't remember what it was hence the split decision
    My journal....Swimming in South Africa:
    http://www.aquaticcommunity.com/aqua...49#post1329449

  5. #5

    Join Date
    Apr 2010
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    Seattle Side of the Mountains
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    Thanks for the B-Day wish - Strider199   Thanks for the Rep! - steeler1   Thanks, and one for you too. - mommy1   lol - 5 steps to gift giving.  We should eat more bananas... potassium and all that. - KevinVA   Here's to one crummy Superbowl, lol! - Slaphppy7   

    Default


    0 Not allowed!
    I tend to divide my tetras into the "narrow body" like neons, cardinals, etc and the "wide bodies" like serpae, columbia, skirts, etc.

    Bloodfins are a narrow body.

    (Photo is not mine! From http://www.thinkfish.co.uk/)

  6. #6

    Join Date
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    South Africa
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    For a beautiful tank :) - steeler58   Let's bump this school up! - Compass   I'll match Compass's neon! - steeler58   Now we're getting a shoal going! - Compass   A NUDDER WUN!!! - Compass   

    Default


    0 Not allowed!
    Those are stunning! I've never seen them before! :(
    My journal....Swimming in South Africa:
    http://www.aquaticcommunity.com/aqua...49#post1329449

  7. #7

    Join Date
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    Thanks for the B-Day wish - Strider199   Thanks for the Rep! - steeler1   Thanks, and one for you too. - mommy1   lol - 5 steps to gift giving.  We should eat more bananas... potassium and all that. - KevinVA   Here's to one crummy Superbowl, lol! - Slaphppy7   

    Default


    0 Not allowed!
    I used to keep them, and they are pretty hardy and fairly well available around these parts.

    I think they are the most enjoyable in the mornings... when they spawn. The ladies leap above the water when scattering their eggs. Never saw any come to fruition, but lots of spawning behavior.

  8. #8

    Join Date
    Oct 2013
    Location
    South Africa
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    Latest gifts & ribbons:

    For a beautiful tank :) - steeler58   Let's bump this school up! - Compass   I'll match Compass's neon! - steeler58   Now we're getting a shoal going! - Compass   A NUDDER WUN!!! - Compass   

    Default


    0 Not allowed!
    Sadly, the selection of tetras in South Africa is quite limited.
    My journal....Swimming in South Africa:
    http://www.aquaticcommunity.com/aqua...49#post1329449

  9. #9

    Join Date
    Aug 2012
    Location
    Gods Country, Eastern High Sierras, California
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    Awards Showcase

    Latest gifts & ribbons:

    Just pretend it's a cardinal, lol - Slaphppy7   Here's to 5 years, bud. - Slaphppy7   Thanks for the rep! - WhistlingBadger   Here is some coffee so you have lots of energy to get ready to order fish from Wetspot! - discusluv   16K posts! - Slaphppy7   
    Mourning - Anti-Gang - Melanoma - steeler1   Mourning - Anti-Gang - Melanoma - steeler1   Bone Marrow Donation - Childhood Depression - Depression - Environment - Eye Injury Prevention - Glaucoma - Kidney Cancer - Kidney Disease - Kidney Transplantation - Leukemia - Lyme Disease - Mental Retardation - Missing Children - Organ Donation - T - steeler1   Troop and Military Support - Amber Alert - Bladder Cancer - Endometriosis - Equality - Liver Cancer - Liver Disease - Missing Children - POW/MIA - Spina Bifida - Suicide - steeler58   Mourning - Anti-Gang - Melanoma - Slaphppy7   

    Default


    0 Not allowed!
    There are many beutiful African characins we rarely see in the States, are they more available to you?
    Last edited by steeler58; 01-07-2014 at 11:58 PM.
    Perfection is not attainable, but if we chase perfection we can catch excellence.
    Once you learn to quit, it becomes a habit.
    -Vince Lombardi

    Be more concerned with your character than your reputation, because your character is what you really are, while your reputation is merely what others think you are. ― John Wooden
    Sandy Hook Elementary......Lest We Forget
    See my profile for my tanks and what fish I keep

  10. #10

    Join Date
    Oct 2013
    Location
    South Africa
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    794

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    Latest gifts & ribbons:

    For a beautiful tank :) - steeler58   Let's bump this school up! - Compass   I'll match Compass's neon! - steeler58   Now we're getting a shoal going! - Compass   A NUDDER WUN!!! - Compass   

    Default


    0 Not allowed!
    Having just looked at several pictures of the African ones I would have to say that I have never seen a single variant in any pet store here.

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