How old is this baby betta?

[DeathclawRowe1]

How old would you say my betta is now?

 

[Andy Sager]

Without knowing the spawn date, there is no way to accurately determin a Bettas age. I've had slow growers that developed fully at 18 months and I've had fish large enough to breed in 4 months. Just no way of telling what's what. I will say, based on pic #2, since I see that "little white dot" at her ovipositor, she is old enough to think about breeding.

 

[DeathclawRowe1]

Sweet maybe I can find her a small male

 

[Andy Sager]

Since there is no point of referrence as to her actual size, keep this in mind:
Smaller fish produce smaller eggs. Smaller eggs produce smaller fry. Smaller fry are much harder to get to live than larger fry.
If she is very small, I would strongly consider letting her grow a bit more before breeding her. That being said, make sure you check out the many threads on here about breeding Bettas. It's not as easy as it looks and raising the fry takes room. Be prepared There are more stories of failure breeding Bettas than successes raising the fry. (Just something to keep in mind )

Hope this helps