I dont know I dont watch that guy very often, but I can give you some info on blue beauties.
They will grow 8-9 feet within 3 years. at one year of age expect around 5 feet. as babies they are very nippy...every time i handle mine (about 4 months old i've had her around 2 weeks now) she strikes at me but not biting down. personaly, i love her personality. she doesnt take crap. but as I was told I do need to invest in a good snake hook and some feeding tongs, because as she grows older as one lady put it to me "i used to throw the mice into her cage and watch my blue beauty catch them mid-drop, until she missed one time and got my arm" ....well paraphrased.
care is basically the same as a n. american rat...cool/warm side, i keep mine at a gradient of 78/82. she stays buried a lot, but shes also cruising quite a bit. i do think shes my favorite as far as personality, my licorice stick black rat as far as if i want a calm one just to hold for a bit.
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The reason mainstream thought is thought of as a stream is because it's so shallow. -George Carlin
A fool doesn't learn. A smart man learns from his mistakes. A wise man learns from the mistakes of others. Which one are you?
My Website
Rat/Corn snake care sheet I wrote
Current snakes:
0.1 Licorice Stick Black Rat (Lola)
1.0 Neonate Black Rat (het for Lic Stk's) (Frankie)
1.1 Texas Bairds (Jose and Rosa)
0.1 Blue Beauty (Brunhilde)