I agree...
New snake = new set up.
They are not social creatures and there are many reasons why not to keep two snakes together. Please look around for more information on cohabitation. You'll probably decide for yourself it's not a good idea. Plus, you'll be needing to keep one snake in a larger enclosure as an adult, you might want to be looking for a 20 gal in the near future. That 10 gal won't be big enough.