Crested geckos? Answers need alot of answers!?

Im going to get my gecko on this friday and we are leaving for a 2 mayb 3 day trip early this sunday morning. Will my new baby crested gecko be ok with some CGD in his bowl and a water dish or will the diet mold in 2-3 days.and without misting just a water bowl?And will my turtles be ok without food for 2-3 days they r baby not hatchling almost juvey. PLease make sure u know what ur talking bout so i dont come back to a dead gecko! wherever u found the page please give me the link so i can read were it says they wont die! thx