New Kitten Not Eating! Help!

[MayfieldMeadows]

Hello MaineCooners!

We are proud to have 2 new kittens living with our family (Arnie and Sylvester). They're brothers and are 16 weeks old. We only picked them up from their mum a week ago and have been having great fun together! However Arnie has barely been eating... Sylvester is eating perfectly well and has endless energy... His brother is much more subdued. I've heard that it might be the stress of living in a new home that's putting Arnie off his food? Any advice would be much appreciated though! Thankyou so much!