Pinky, yes, grizzle is basically an ununiform speckling, like on my CT that I posted a pic of. It cropped up in breeders quest to perfect their pastel lines, so they aren't happy when their breeding for a solid pastal & they get something w/ speckles!
Weasel, thanks for pointing out i'd have 50/50, but the babies would be half VT & half *crowntail*, not combtail.
As for naming, I never used to name my bettas until I got back into them. I've only lost 1 out of 11 bettas since Sept. & all had/have names.
Here are my two VT males. Argosy (walmart) is the red marble & Jackson (petsmart) is the multi-color butterfly/marble.