PlanetCatfish.com

Hey all - at what length or at what age do L134 males generally begin showing odontodes? I'm hoping I have a male in my group!

2.5" SL or so, if they are in good condition (that usually means "Have been in a settled good tank for at least a few weeks").

--
Mats

Great.

As I just got them & got them in a heavily caved 55, I'll give it a few weeks & check a little close. Thanks much!

I kept over 30, one year old, F1 L134 I kept as future breeders which are 2-3/4 inches TL and there are no distinguishing features between the sexes at this point. I expect it to be another year before they may be sexed and expect them to begin spawning at about 3 years old.

My breeders came in at about 2-3/4 inches TL and did not begin spawning until 2 years later.
My group is now into their second breeding season. I have about 80 new fry since they resumed spawning in early March.
My L134 begin spawning in March and stop in September.
I only have 2 males and 3 females in my breeding colony which are set up in a 20 Long, 12 X 12 X 30 inches.

I have a male and 2 females about 2-2 1/2" which i kept for around 6 without knowing what male/female ratio i had.
When i moved them to there own 30x15x12 tank i was able to view them from above whilst they were in a plastic tub that i was clearly able to see the sexual differences between them.
Hope this helps.
Col.

I trust Col's method for young fish over odontode development the most since the latter can be subject to many variables such as age and condition.
Females are always broader between their pectoral fins than males of the same age and size.