Any JD specialists out there...

The female I used to have.

2004_0118Image0039.JPG
 
Im not an expert by any stretch of the imagination but it looks like a female to me, based on what descriptions of what a female should look like and how mine looks right now.
 
at what age, or length is a JD not considered a juvi? y'al say you can't really tell until they get older, yet how much older is older? also does anyone have experience breeding them? how big are they once i need to begin to consider tank setup for breeding?
 
AquariaCentral.com