juvie/subadult size

[adamofsound]

Hi,

I am currently working with my first crested. I got it as a 4-6 week old and it was tiny.
it is now approx 6-7 months old and is 3.5 inches snout to vent lenght.

this seems small to me, can anyone tell me if I should be concerned or is this normal size?

I have a gargoyle that is a few months older and quite a bit bigger. that is all the rhac experience I have to compare to.

thanks for your input
Adam