Is this what it looks like?

[infernalis]

i would have no problem accepting what you say Wayne as it seems to be a likely scenario, but for one nagging doubt, if many casual keepers had indeed committed this deceitful act then would the Euro tetra be exhibiting such inbred tendencies,

Judging by my conversation with this bloke, Money was not of any interest here, he's very fluid financially.

That's where things get "tricky", if several casual keepers allow this to happen, then give away the offspring, or sell them cheaply in bulk... well you get the idea.

We are a unique lot here, most of the general public (who like snakes as "pets") could give a rats arse about genetics or purity of the bloodlines.

One reason why albino chequered garter snakes are so popular in the trade is they are cheap to buy.

As fanciers of all things Thamnophis, we all know that snake is another heavily inbred animal, but the people who frequent the pet shops only see a pretty snake that is small, cheap and easy to care for.

Then take it home and feed it goldfish.