If your female is an anery A, then the ONLY way to get an amel out of her is for the following to be true:
1) She has to be het for amel (obviously)
AND...
2) She had to be exposed to a male that carries the amel gene (either heterozygously or homozygously), but the male cannot be homozygous for anery A
So, a normal male (if he is het for amel), your amel male, or even that bloodred male (if he's het for amel)you have listed...any of them could be the sire of that little amel baby, depending upon which one(s) is/are large enough to breed your female. A male can breed as soon as he is large enough not to be frightened of the female, so you may be surprised as to which male got the job done, assuming you have some smaller males there.
Here's the another kicker...
Since corns can conceive from multiple males, it may be that your anery male did sire all of the other hatchlings, OR the sire of that little amel may also be het for anery A, in which case, there is likely no way to tell (short of genetic testing) which of the snakes is the sire of the anery A babies.
It only takes a second or two for willing corns to lock up, so it is entirely possible that you didn't notice your female being bred by another male, but whether you saw it or not, it happened. There's just no way for an amel to come from breeding to anery A parents together.
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Darin Chappell
Hillbilly Herps
PO Box 254
Rogersville, MO 65742