On Sep 26, 1:27 am, Andy Gratton <[email protected]> wrote:
> You would of thought that the Betta would have been ok taking in
> air considering it is specially adapted to accept oxygen from the
> atmosphere by use of the labyrinth organ,
> Given all the years of commercial breeding and possibly less wild caught
> fish in the hobby, maybe Betta's are evolving and use of the Labyrinth
> organ is becoming defunct , jmho
>
Don't forget at the breeder's they're still in small containers. They
need to use their labyrinth organ still.
Bettas being kept as pets are often kept in oxygen depleted vases /
bowls...so they're going to be using it.
If all bettas were to be housed in pristine, well oxygenated waters
from the time they hatch, until they day they die...all of them over
the world.....then maybe they'd start to lose the function of that
organ.
Even gouramis still have the use of it, and they're hardly ever kept
like a betta.
