Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - Breeding
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 12-28-2010, 05:10 PM   #1
Aquarium Advice Freak
 
Join Date: Nov 2010
Posts: 268
Guppy fry: ALL female?

I've had multiple female guppies give birth from the same tank and I have isolated all the fry so they survive - but every single one is female from what i can see. They're of varying ages and size from 5 weeks to 1 week. Mynmales are particularly colourful in my main tank so the fact that there isn't a drop of colour in any of the 40+ crechť. Is this normal? It seems like it shouldn't be, especially given that after about 6 weeks they can be sexually active.

Halp?
__________________

__________________
Shetland James is offline   Reply With Quote
Old 12-28-2010, 07:03 PM   #2
Aquarium Advice FINatic
 
GuppyLover's Avatar
 
Join Date: Dec 2010
Location: PA
Posts: 903
Quote:
Originally Posted by Shetland James View Post
I've had multiple female guppies give birth from the same tank and I have isolated all the fry so they survive - but every single one is female from what i can see. They're of varying ages and size from 5 weeks to 1 week. Mynmales are particularly colourful in my main tank so the fact that there isn't a drop of colour in any of the 40+ crechť. Is this normal? It seems like it shouldn't be, especially given that after about 6 weeks they can be sexually active.

Halp?
They will start to get there color at about 5 weeks old, By the time they are 7 weeks old all of their color should be in. They become sexually active at 6 weeks but if you alow them to breed at that time all of there fry will come out to look like ugly gray feeder fish, Once your males and females start to get there colors and you can tell them apart you should seperate them so they don't breed.
__________________

__________________

GuppyLover is offline   Reply With Quote
Old 12-28-2010, 08:07 PM   #3
Aquarium Advice Addict
 
mudraker's Avatar
 
Join Date: May 2009
Location: Alaska
Posts: 1,652
Depending on what you are feeding the fry, it could take longer for their male colors to show. It is highly doubtful they are all female.
__________________
mudraker is offline   Reply With Quote
Old 12-28-2010, 09:47 PM   #4
AA Team Emeritus
 
Join Date: Jun 2005
Location: Whitby, Ont,Canada
Posts: 2,759
Quote:
Originally Posted by GuppyLover View Post
They will start to get there color at about 5 weeks old, By the time they are 7 weeks old all of their color should be in. They become sexually active at 6 weeks but if you alow them to breed at that time all of there fry will come out to look like ugly gray feeder fish, Once your males and females start to get there colors and you can tell them apart you should seperate them so they don't breed.
Not true.
__________________
Join a fish club. Don't have one in your area? Start one.
BillD is offline   Reply With Quote
Old 12-28-2010, 10:00 PM   #5
Aquarium Advice Addict
 
mudraker's Avatar
 
Join Date: May 2009
Location: Alaska
Posts: 1,652
I have about 200 guppies, and keep males, females and fry seperate.

Personally, I've never seen or heard of young parents producing anything but what their genetics are.

If you let different varieties of young fry who don't have their colors yet breed willy-nilly with different colors (say delta blues with lemon cobras) the fry may start reverting back to the generic looking non-fancy look. Usually you get an orange/black combo for a generation or two first.

However, well bred fancy guppies bred with others of their kind, will produce offspring that look like the parents, regardless of age.
__________________
mudraker is offline   Reply With Quote
Old 12-28-2010, 10:06 PM   #6
Aquarium Advice FINatic
 
GuppyLover's Avatar
 
Join Date: Dec 2010
Location: PA
Posts: 903
My brother breeds guppies and Ihave seen it happen plenty of times and I have read about it in almost everyone of my books. Just because it hasn't happened to BillD doesn't mean its not true and although you have so many guppies and have never had it happen I no for a fact it does. I was also told this at a petshop when I purchase my first Guppies.
__________________

GuppyLover is offline   Reply With Quote
Old 12-28-2010, 10:23 PM   #7
Aquarium Advice Addict
 
mudraker's Avatar
 
Join Date: May 2009
Location: Alaska
Posts: 1,652
I would take pet shop advice with not just a grain of salt, but a whole salt lick.

Its the genetics of the parents, not the age of the parents that determines the type of fry produced.
__________________
mudraker is offline   Reply With Quote
Old 12-29-2010, 05:34 PM   #8
Aquarium Advice Apprentice
 
Join Date: Dec 2010
Location: Trail BC
Posts: 11
Although reading a book does not make one an expert in the field where as there are many experts that even sometimes work at pet shops that are paid for what they know. Even some that belong to guppy associations such as the IFGA and many other educational guppy sites such as the IGEES - International Guppy Education and Exhibit Society that are highly educated in the matter of the post. Many are professional breeders that belong to that society.

There are many professional breeders that would agree with this statement done by mudraker. However, well bred fancy guppies bred with others of their kind, will produce offspring that look like the parents, regardless of age.

Pure bred fancy strain guppies that have heritage that are bred by those that know the control of their genetics would say that the colors of males and females may occur even sooner than 4 weeks I have purebred strain of Black Moscows where the young develope as early in coloration as three weeks.

However if you have bought your guppies in the stores and do not know their heritage it does not matter how many books you have read as you do not know the history of the strains involved in making those guppies.

There is a difference between knowing and not knowing the history and the possible phenotypes in breeding guppies and that takes not only reading but breeding and observing the fish

Now for the possibility of them being all female in some university studies that have been out there there is even issues of females actually changing sex ...and possibility of fry being of one sex or another due to water conditions there are many factors involved.

However waiting the period of up to 2 months would be advised for aquarists with lack of knowledge in this area in regards to sexing and yes I would think the best plan is to seperate males from females in regards to store bought guppies for selection of further breeding.
__________________
fan4guppy is offline   Reply With Quote
Old 12-31-2010, 08:54 PM   #9
Aquarium Advice Freak
 
Join Date: Dec 2010
Location: Oswego IL.
Posts: 338
i read somewhere that when the fry are first born they are all females the some change gender as they grow.
__________________
Owl307 is offline   Reply With Quote
Old 01-03-2011, 12:56 PM   #10
AA Team Emeritus
 
Join Date: Jun 2005
Location: Whitby, Ont,Canada
Posts: 2,759
Quote:
Originally Posted by mudraker View Post
I would take pet shop advice with not just a grain of salt, but a whole salt lick.

Its the genetics of the parents, not the age of the parents that determines the type of fry produced.
This is true.
__________________

__________________
Join a fish club. Don't have one in your area? Start one.
BillD is offline   Reply With Quote
Reply

Tags
female, fry, guppy, guppy fry

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
How do you stop a guppy fry hunger, if the fry can't see the food on the surface? Temp Freshwater & Brackish - General Discussion 10 08-25-2010 01:56 AM
What should you do if all of your guppy fry are female? Temp Freshwater & Brackish - Breeding 6 08-01-2010 01:08 PM
female guppy seriously bad off mumrah Freshwater & Brackish - Unhealthy Fish 9 12-30-2004 10:17 PM
GUPPY FRY AND MOLLY FRY jsdbdca Freshwater & Brackish - Breeding 6 09-26-2003 10:28 AM
chocolate gourami fry & guppy fry yv1 Freshwater & Brackish - General Discussion 3 09-09-2003 06:45 AM







» Photo Contest Winners







All times are GMT -4. The time now is 08:51 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×