Go Back   Aquarium Advice - Aquarium Forum Community > Community Forum > Aquaria Off-Topic
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 03-05-2015, 06:07 PM   #41
Aquarium Advice Freak
 
emeraldking's Avatar
 
Join Date: Aug 2014
Location: The Netherlands
Posts: 356
For the trained eye, after 2-4 days it should already be possible to determine the genders. Overhere, I do have to seperate males from females at a very early stage. So, females can grow up to the right proportional size and being virgins for as long as possible. Those will be the better females to breed with.
__________________

__________________
Devoted aquarist ever since early 1970's...

Specialized in livebearers &
specific breeder of rare livebearers...
emeraldking is offline   Reply With Quote
Old 03-05-2015, 07:29 PM   #42
Aquarium Advice Addict
 
SpaceFish42's Avatar
 
Join Date: Feb 2015
Location: Washington
Posts: 1,168
Some of them are larger with markings that look like the beginnings of a half-black something. Does that have anything to do with gender?
__________________

__________________
SpaceFish42 is offline   Reply With Quote
Old 03-05-2015, 07:54 PM   #43
Aquarium Advice Freak
 
emeraldking's Avatar
 
Join Date: Aug 2014
Location: The Netherlands
Posts: 356
Nope! For both genders could turn in half black bodies to start with...
__________________
Devoted aquarist ever since early 1970's...

Specialized in livebearers &
specific breeder of rare livebearers...
emeraldking is offline   Reply With Quote
Old 03-06-2015, 12:18 AM   #44
Aquarium Advice Addict
 
keegster803's Avatar
 
Join Date: Jul 2014
Location: Westfield, IN
Posts: 1,341
Quote:
Originally Posted by emeraldking View Post
For the trained eye, after 2-4 days it should already be possible to determine the genders. Overhere, I do have to seperate males from females at a very early stage. So, females can grow up to the right proportional size and being virgins for as long as possible. Those will be the better females to breed with.

How can you tell the gender then? I can only tell within the first couple months


Sent from my iPad using Aquarium Advice
__________________
keegster803 is offline   Reply With Quote
Old 03-06-2015, 12:41 AM   #45
Aquarium Advice Addict
 
SpaceFish42's Avatar
 
Join Date: Feb 2015
Location: Washington
Posts: 1,168
Quote:
Originally Posted by emeraldking View Post
Nope! For both genders could turn in half black bodies to start with...

It's just weird because all except three came from the same mother, but about a quarter of them are like that.
__________________
SpaceFish42 is offline   Reply With Quote
Old 03-06-2015, 12:55 AM   #46
Aquarium Advice Addict
 
SpaceFish42's Avatar
 
Join Date: Feb 2015
Location: Washington
Posts: 1,168
Quote:
Originally Posted by keegster803 View Post
How can you tell the gender then? I can only tell within the first couple months


Sent from my iPad using Aquarium Advice

Yes, I was wondering that too. There is someone who is going to recurve some guppies for her birthday, and I need to make sure there is at least one male. (Getting all females wouldn't be quite as exciting for a younger kid.)
__________________
SpaceFish42 is offline   Reply With Quote
Old 03-06-2015, 12:56 AM   #47
Aquarium Advice Addict
 
SpaceFish42's Avatar
 
Join Date: Feb 2015
Location: Washington
Posts: 1,168
Quote:
Originally Posted by SpaceFish42 View Post
Yes, I was wondering that too. There is someone who is going to recurve some guppies for her birthday, and I need to make sure there is at least one male. (Getting all females wouldn't be quite as exciting for a younger kid.)

Whoops! Receive, not recurve. Stupid autocorrect! 😋
__________________
SpaceFish42 is offline   Reply With Quote
Old 03-06-2015, 06:41 AM   #48
Aquarium Advice Freak
 
emeraldking's Avatar
 
Join Date: Aug 2014
Location: The Netherlands
Posts: 356
Well, first of all... female guppies are already born with a gravid spot to start with. And it's clear of less clear to see at each individual female. But after 2-4 days a slight spot should be seen. And remind you that a gravid spot doesn't have to be black.

I'm sexing guppies and other livebearers (with the exception of goodeids) for many years at an early stage like that. With xiphophorus strains it can be a bit tricky because a sex change from female to male can happen.

Young females and males tend to grow up with the same speed. But males can develop their gonopodium between the age of 4-8 weeks. This differs between the individual males. Once a juvenile male has developed a gonopodium, it will be functional. So, in a tank with mixed genders, juvenile females can get pregnant at an early stage. Which results maiinly in small remaining females. I'm breeding for shows and competitions as well and you just can't offer smaller females to be judged. At a competiton or championship when you offer pairs, the females should always be larger than a male. So, letting females grow up seperate from the males ensures you to have fullsize females. It also ensures virgins which have a better potential to carry during pregnancy.
__________________
Devoted aquarist ever since early 1970's...

Specialized in livebearers &
specific breeder of rare livebearers...
emeraldking is offline   Reply With Quote
Old 03-06-2015, 06:48 AM   #49
Aquarium Advice Freak
 
emeraldking's Avatar
 
Join Date: Aug 2014
Location: The Netherlands
Posts: 356
Quote:
Originally Posted by SpaceFish42 View Post
It's just weird because all except three came from the same mother, but about a quarter of them are like that.

I don't know where all others came from but it's a common thing nowadays that both genders can get coloured markings on their bodies. If I look at my tuxedos for example, they are born grey but will turn darker (both genders) when they get older. And I don't mean just their fins but also their bodies.
__________________

__________________
Devoted aquarist ever since early 1970's...

Specialized in livebearers &
specific breeder of rare livebearers...
emeraldking is offline   Reply With Quote
Reply

Tags
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
Platy Fry or Guppy Fry - How Can You Tell? suziparis35 Freshwater & Brackish - Breeding 4 06-14-2014 10:41 PM
Platy fry or guppy fry? TLfreshhhhwater Freshwater & Brackish - General Discussion 5 02-10-2014 05:03 PM
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 02:56 AM
GUPPY FRY AND MOLLY FRY jsdbdca Freshwater & Brackish - Breeding 6 09-26-2003 11:28 AM
chocolate gourami fry & guppy fry yv1 Freshwater & Brackish - General Discussion 3 09-09-2003 07:45 AM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 08:37 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.