I could tell you loads of stuff. I presume you have done a Google
. Theres quite bit out there.
Channa Punctata from Pakistan, India. There are a couple of colour varients normally brown and what has been sold as Fluero Green as well as the leustic one you are buying.
They get to about 12" and are considered one of the more aggresive small snakeheads. They are also capable of breathing oxygen directly from the water rather they having to reach the surface like a lot of other snakeheads. They will eat anything they can get in their mouths, mussels, shrimp, worms all the frozen stuff.
Intersting point for yourself, It has been found in brackish water.
Its about time you got something like this.