They are All Females?

dwool36 · 04-24-2006, 07:06 PM

I have about 200 guppy fry aging from 3-8 weeks. All but TWO appear to be female. I know that with kribs and some cichlids the ph can affect the male/female ratio of the fry, but I can not find anywhere where this is the case for guppies. Is there some external factor that would cause such a skewed ratio?

CK147 · 04-24-2006, 09:54 PM

I love the fish on your icon. And sorry can't help but seem to have a similar problem with my endlers. I have only 2 males and about 20 females and all new babies that have grown out seem to be female.

kaybee · 04-26-2006, 07:20 AM

I've noticed the same thing with my platy population. I don't do any special breeding procedures, I just let nature take it's course, but since they started reproducing 4-5 months ago I have yet to have any males.

Kay

**fish_doc** · 04-26-2006, 10:19 AM

I have seen articles that claims that it has to do with pH and other articles that claim it has to do with water temp.
Either way the articles I have seen do not say it is a definate science. More of a guess. Try tracking those things through a few generations and make changes and see what kind of results you come up with. It would be intresting to see.
In addition different species do need different water conditions so guppies may have different results than platies or mollies

msdolittle · 04-26-2006, 10:42 AM

I only have 13, but all of my mollie fry are female too.........darnit.

leafgirl115 · 04-27-2006, 05:36 PM

Myn are all female to (i think lol) they are a month so im not shur... hear is a pic of one that is female:

04-24-2006, 07:06 PM	#1
dwool36 Senior Member Join Date: Jan 2006 Location: Southern Indiana Posts: 312	They are All Females? I have about 200 guppy fry aging from 3-8 weeks. All but TWO appear to be female. I know that with kribs and some cichlids the ph can affect the male/female ratio of the fry, but I can not find anywhere where this is the case for guppies. Is there some external factor that would cause such a skewed ratio?

04-26-2006, 07:20 AM	#3
kaybee Member Join Date: Aug 2005 Location: Central Wisconsin Posts: 98	I've noticed the same thing with my platy population. I don't do any special breeding procedures, I just let nature take it's course, but since they started reproducing 4-5 months ago I have yet to have any males. Kay __________________ 10 Gallon tank ~4 platy ~about 11 fry at various stages of development ~a few beginner plants ~1 mystery snail 1 Gallon ~Mario the betta 1 Gallon ~Luigi the other betta ~Dreaming of a sw reef~

04-26-2006, 10:19 AM	#4
fish_doc Advisor to Neptune (Mod) Join Date: Jan 2005 Location: Northern Illinois Age: 40 Posts: 3,953 Blog Entries: 19	I have seen articles that claims that it has to do with pH and other articles that claim it has to do with water temp. Either way the articles I have seen do not say it is a definate science. More of a guess. Try tracking those things through a few generations and make changes and see what kind of results you come up with. It would be intresting to see. In addition different species do need different water conditions so guppies may have different results than platies or mollies __________________ Dave (fish_doc) A World of fish

04-26-2006, 10:42 AM	#5
msdolittle Animal Addict Join Date: Mar 2006 Location: Ohio Age: 34 Posts: 625	I only have 13, but all of my mollie fry are female too.........darnit. __________________ ~Angela~

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04-24-2006, 09:54 PM	#2
CK147 Junior Member Join Date: Apr 2006 Age: 29 Posts: 9	I love the fish on your icon. And sorry can't help but seem to have a similar problem with my endlers. I have only 2 males and about 20 females and all new babies that have grown out seem to be female.

04-27-2006, 05:36 PM	#6
leafgirl115 ₪ Morgan ₪ Join Date: Mar 2006 Location: Canada Age: 18 Posts: 477	Myn are all female to (i think lol) they are a month so im not shur... hear is a pic of one that is female:

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