My breeding colony has been busy this year. I have fry approaching 1.25 inches (probably some are already that size). They are F1 from unrelated parents. I know pocketbooks are tight at the moment, but I still thought I would put this posting out there.
That’s correct, they are too young. With wild caught no longer an option, I think this is the best size to get them. They grow to maturity in your water parameters. Also, with mature fish you have no way of knowing their true age or their general inclination to breed. Nobody is going to sell the males and females that are currently breeding for them. Buying them young keeps everyone honest. Then you raise them and hope you get a good ratio and that you have figured out the best way to keep them happy (you will have the time).
This is assuming you want to breed them. If not…probably doesn’t matter. They all look good and they live a long time.
Are you going by looks or behavior or both. I had ideas about mine as they matured and was wrong about a couple of them. One I’m still not 100% sure. Maybe 1 of the larger will turn out to actually be female.