My friend is letting me babysit his adult leo while he's away at college. From what I understand, he is in a 10 gallon tank, is on sand, has a light bulb and heat rock, and eats crickets. My friend has had him for 5 or 6 years, but has no definite age.

I'm getting rid of the heat rock and am adding silkies and mealies to his diet.

Is there anything special that he will be needing?

Thanksss, guys.