Many white spots/speckles on the belly of hatchling MBK?

[noodlehaus]

I don’t personally keep MBKs, but I’ve definitely heard they can hatch with faint patterning. It should darken up with age. That said, MBK lines aren’t 100% pure (as is the case with many colubrid species, it seems).

Mexican Black Kingsnake Morphs

A dirty little secret in the hobby is that all MBK bloodlines have some level of CalKing blood in them so establishing a pure species baseline would require acquisition of direct out of the wild collection. And since Mexico no longer allows exportation of their wildlife, there is pretty much zero chance of getting pure sample to RGI