1. Should i get a license now, or when i actually start breeding my babies?

If you aren't planning on becoming a big breeder you can claim your income as a hobby based business on your personal return without a license. If you plan to expand you should get a business license -- you will need a license or a DBA if you plan to do business as something other than yourself (your name).

2. I read that since it would be my business, that the things i buy to support said business would be considered tax-writeoffs. True or False?

Most things are deductible -- some things are better depreciated -- a decent accountant will be able to help set you up proper.

3. Should i start saving receipts for the things i need for them or have already bought (i.e. Shelving, tubs, feeders, substrate, heat cable, etc.) and claim them on next years taxes?

Yes set up a good filing system and keep everything - as far as things you have already bought - I was told you could only claim them in the year you bought them but you can double check with your accountant.

4. Are the snakes themselves a tax-writeoff?

Snakes are a depreciating asset.