If I'm right, they may become red-eyed when grow.
I hope you're right. That would be nice.
I was thinking...Are your barbs as colorful as the picture you posted from liveaquaria?
The male image is what I have. The female image is not exactly: mine are halfway between the male and female images in intensity. But: the female image was correct back in December, and is also pretty good in the morning.
You might have noticed that Odessa's are much paler when you turn on the light, it takes them maybe 30 mins to become bright.
The other thing with mine is that I messed them up a bit: I change the light to a little stronger (single strip to a double) so I can put in some plants. This quickly made all barbs of much brighter red, and also much darker on top, just like on the male image above.
I liked the previous appearance a better....it is now difficult to tell males from females.
I notice that the female there does not have a red eye.
Unfortunately I don't remember if they had red eyes in December.... But they all do now, and this includes my mutant #8 which has no red stripe at all: I would have classified this one as a rosy or golden, based on the appearance, but it does have red eyes.
I'll try to get pictures. I cannot do it myself, but someone better than me will try. If this takes a few days, I'll alert you by a PM.