Catfish Logo Full
Catfish Logo Half
Catfish Logo Head
PlanetCatfish.com logo
Please visit Swiss Tropicals, proud sponsor of PlanetCatfish.com

how to tell if eggs are in infertile

All posts regarding the care and breeding of these catfishes from South America.
User avatar
DJ-don
Posts: 714
Joined: Mon Jul 20, 2009 10:31 am
My cats species list: 5 (i:0, k:5)
Location 1: Canberra Australia
Location 2: Canberra Australia

how to tell if eggs are in infertile

Postby DJ-don » Mon Sep 28, 2009 12:57 pm

how would you tell if bronze cory etc eggs are infertile or not? and what should i do to get rid of the infertile eggs, because im thinking it would be very difficult to remove the infertile 1's because of how adhesive they are. and would fungus attack fertile eggs too?

User avatar
torbanite
Posts: 440
Joined: Mon Nov 26, 2007 1:28 am
I've donated: $100.00!
Location 2: CO, USA

Re: how to tell if eggs are in infertile

Postby torbanite » Mon Sep 28, 2009 5:21 pm

Fertile Corydoras eggs tend to go a tan sort of colour. After a few days you can just about make out the embryo developing inside (if you screw up your eyes/use a magnifying glass)
Image

Infertile eggs tend to go/remain white and have fuzz growing on them.. You can see four dead ones in the group below.

Image

I tend to just let nature take its course but I'm sure that, with a steady hand, it will be possible to separate the good eggs from any bad ones without damaging the good ones.

The eggs in the pics above are from C. paleatus, but the story is much the same for C. aeneus.

Hope that helps,
Martin

User avatar
DJ-don
Posts: 714
Joined: Mon Jul 20, 2009 10:31 am
My cats species list: 5 (i:0, k:5)
Location 1: Canberra Australia
Location 2: Canberra Australia

Re: how to tell if eggs are in infertile

Postby DJ-don » Tue Sep 29, 2009 1:17 am

thanks martin! this would really help in the future because i plan to breed corys!


Return to “South American Catfishes (Callichthyidae - Corys et al)”

Who is online

Users browsing this forum: No registered users and 1 guest


© 1996 - 2014 PlanetCatfish.com, part of the Aquatic Republic Network group of websites. All Rights Reserved. By accessing this site you agree to our Terms and Conditions of Use.