He'll probably be in blue for 3-4 days then he'll clear up for a day or two and should shed the following day or within a couple of days. It's been my experience that the quicker through the process, the better shed they have. My little guy just shed a couple of days ago, he was blue for 2 days, clear for one and shed that night in one quick clean piece eye caps and all, pretty cool, this was the third shed since he's been with me and the first two were a bit more long, drawn out and he didnt shed cleanly. Hope this helps!
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Tosha 
1.1.0 Ball Python (Harry and Fluffy)
0.1.0 Siberian Husky (Kita)
0.2.0 Feline (Pippen and Pandora)
0.0.1 Dessert Tortoise (Pope)
5.4.2 Fish (1,2,3,4...)
0.0.1 Frog rescued from pool skimmer
0.0.2 Lizards rescued from pool skimmer