Yes, Snow is a line bred trait. The official term for that is Complex Inheritance. What that means is that it takes multiple genes to combine in just the right way to exibit the morph.
Actually, you do not have to have two Snows to get a Snow. I have bred low quality Snows from a pair of high yellows that I had several years ago. Having two Snows really improves your chances though.
One thing to keep in mind though. We have had several discussions lately on line bred animals and how much they change over the first few months of life. I would wait until after 6-8 months to for sure qualify it as a Snow as there are many animals that look to be one thing as a hatchling or juvie and then as an adult they look completely different. Give it some time.
Post some pictures for us.
LGGG
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Steven
Royal Gold Reptiles
Offspring available now from LV Patternless Albino stock for '03 and '04.
Working towards Bell Patternless Albinos for '05.