Its so hard to tell in species when they are that small. I was thinking cambarellus shufeltdii but it very well could be a marble. It just looks a heck of a lot like my shufeltdii and my marbled didn't have that bright of coloration as babies. I am always happy to be wrong, crays are not my strong suit as I just keep cambarellus now.
^ Thanks for the input all the same... i guess the only thing i can do is wait till it gets a little bigger then maybe i'll try and get her out of the tank and while in a holding tank take another pic for a better ID...