If the het snow was with an albino, you would get half normals and half albinos and all of the babies would have a 50% chance of being het anery. If you paired the het snow with a het albino, 25% of the babies would be visual albinos and the rest would be 66% het albino. All of the babies would still have a 50% chance of being het anery.

Breeding a het snow to a het snow has a 1/16 chance of producing a visual snow because of both genes involved. When you breed a het to a het, 1/4 of the babies are visual. Because a snow needs to genes, you have to hit this 1/4 chance with both genes, resulting in a 1/16 chance.

Yes, when you breed a het snow to a het snow, you will also het anerys poss het albino and albinos poss het anery.