I picked him up 3 days ago so he may still color up more. The purple is visible to the naked eye and is not iridescence. He has a bit of copper overtone/iridescence to the fins in the sunlight.
I'm relatively new to bettas (I had some a few years back, never bred any) but would like to start learning about the very basics of breeding (separate from genetics) so I'd like to learn how to evaluate potential breeders? If you could simplify and/or not use abbreviation that'd be great since I'm not 100% familiar with them all yet.
He's relatively young, good feisty male, decent coloration, and has 4 fin rays (I think?)