I just got my first ball python from petsmart. I have it in a 75 gallon aquarium. I noticed 2 things about it when I got home. #1 petsmart said they have had this snake for 3 months and that it was doing great, in my opinion it looks pretty emaciated. #2 they said that the snake is 4 months old. I'm no expert but 2 ft long is a little big for a 4 month old snake. I've had this snake for 6 hours and it has eaten 3 pinkie mice and drank a lot of water. Is this normal or is petsmart just horrible?