You can start them in a kritter keeper instead of an aquarium. Hatchlings tend to do better in smaller enclosures so that they can more easily find their food and so that you can keep the humidity slightly higher so that they have an easier time shedding.
If you can find a gecko that is 3-4 months of age or older already that will probably be your best bet as they tend to be jumpier when they are younger. With regular handling they do calm down, but I don't really recommend handling cresteds under 2 months of age too much because they can just be wild and you don't want to risk a small gecko taking a flying leap and accidentally injuring itself.
Also feed young cresteds out of a very shallow dish so that they can easily get to their food. I use deli cup lids--this allows for easy access and little waste (they don't eat that much at once when they are little because their stomachs aren't very big).