I buy my aspen bedding (specifically for snakes) at Petco or Petsmart for about $8. This fills up his entire 20-gallon long terrarium and lets him burrow to his hearts content. While I'm shopping there I will go and look at the rodent section and notice a HUGE bag of "Aspen Bedding" with rats and guinea pigs on it for about $14. Now, this rodent aspen bedding is about 5 times larger than the snake aspen bedding I'm getting now. The only real difference I could tell between the two beddings is that the rodent one had bigger chips of aspen. What is the true difference between snake and rodent aspen bedding and why should I continue to get the one specifically for snakes?