Guppy Fry Sexing
Posted 15 May 2012 - 09:27 PM
I have around 25 guppy fry at 6 weeks old and another 25 of mixed ages from less than a week
up to 2-3 weeks old. My problem is that I wanted to shift the guppy fry into female and male
tanks with other adults. But i cannot tell the difference between the males or females.
How do I determine sex????
I have read countless forums and websites on ways to sex guppy fry and most say the same
thing. Some say ignore gravid spots because it can just be bodily waste, whereas
others say to use the gravid spot. On the fry that are at 6 weeks looking at their under body fins
I cannot tell the difference whatsoever!!! I need help to stop them inbreeding and also to save some new
born fry that are getting harassed by the older fry.
Ill do my best to take some photos that are worth looking at for you guys, but I'm stumped.
This is my first batch at 6 weeks old.
Posted 15 May 2012 - 09:50 PM
Posted 15 May 2012 - 09:57 PM
My problem is that all of the fry look the same in the fin department I should have some pictures up shortly
Posted 15 May 2012 - 10:10 PM
Thanks in advance everyone
Posted 15 May 2012 - 10:49 PM
I used to have 100% success rate telling sexes apart from the gravid spot. If you look at your fry long enough you should be able to tell when you are looking at unfertilised eggs or poo soon enough.
Posted 15 May 2012 - 11:02 PM
Posted 16 May 2012 - 07:53 AM
Posted 16 May 2012 - 08:38 AM
Thank you to everyone on this forum for quick responses and sharing of knowledge, it has put me at ease
Posted 16 May 2012 - 12:35 PM
It was 1am, and I'm fairly sure I wasn't dreaming (did i post in the wrong thread maybe)
Anyway - I hopefully will be looking for the same thing and came across this image that I thought helpful:
Left is female - right male.
Below the female is in the middle...
apparently it's best to sex fry at around the 30-35 day mark
"In about 2 to 3 weeks, female guppiesdevelop a gray spot (gravid spot) a little above their anal fin area. This canbe better seen when you place them on a clear glass. Expert aquarists could beable to identify the spot earlier than that. A guppy does not have to bepregnant to see that dark spot on their body.Waiting for the gonopodium in males is saidto be the most reliable way to identify a guppy’s gender. It is a somewhatmodified fin that appears gray and horizontal."
......... .............. ...Spawn logs: ........Salamander HM F1.- F2 & F3.-.Copper HM.-.Turquoise BF x MG HM.-.Copper (F3) x Super Blue HM.-.Colgate Spawn HM DT
Resources: ........Courtship behavior thread.-.Aquarium Society of Vic.-.Victoria Betta Website.-.Victoria Betta Facebook.-.Red Metal Lace Guppies
Melbournebetta:...Melbourne Betta Lineup (display & breeding stock).-.MB in Thailand article.-.Melbourne Betta YouTube.-.MB Website..-. firstname.lastname@example.org
Posted 16 May 2012 - 06:53 PM
Since this post has now been up for several hours I'm going to leave it up. But could you please seek permission from the owner of those photos.
I'll start a new thread to discuss copyright so there's no need to hijack this thread any further. I know this can be a gray area for many of us including me. Just bear with me while I put my thoughts together.
Posted 16 May 2012 - 08:37 PM
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