thank you for replying, we just got it from the reptile show and we thought it looked a little thin but all of the adults that vendor had looked really good with fat tails and active and everything,
and hes been really active and eating really well! and drinking well so we figure we're just going to have to pay a lot of time and attention to fattening him/her up!
and also its our first "baby" so we weren't sure if it was thin or just that it was a baby, it didn't look any skinnier then anyone else's baby leos, the best we found actually because we walked around and looked at everyones leos to find the healthiest we could, all their other animals "not just the leos" looked pretty healthy, no sick or hurt ones,
but thanks for putting in the time to mention it 
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1. Leopard Gecko: No Name Yet
3. Cats: Midnight, Tiger & Fluffy
rip. Leo: Larry, Crestie: Tuki