View Full Version : Are my Labs female?

The Wedge
05-03-2008, 06:05 PM
Of my 4 juvie E. Y. Labs none of them have black on their ventral side. Does this mean they are all female most likely? They are around 2.5 inches long. I saw some from the same batch that have black on their ventral side. Does this mean anything. The dorsal stripe is there.

05-03-2008, 10:42 PM
I really don't think black on the ventral has anything to do with them being male or female.

05-04-2008, 09:20 PM
All of my males have black on the ventral fin and the females don't. I personally haven't seen a female with it.

05-04-2008, 09:24 PM
That is one possible method of sexing them, the other way to be 100% positive on them is to vent them.

05-04-2008, 10:15 PM
From what I have read that can differentiate based on the exact population they are from.

05-22-2008, 01:22 AM
what does "vent them" mean???

05-22-2008, 01:45 AM
It means you flip the fish over and examine the vent. They all have 2 holes behind the anal fin. On a female the vent and the anus are roughly the same size. On males the anus is the larger of the 2 holes.