nah, they're just petshop fare, so they'll probably be smaller than proper, anyhow. I was just curious as i've had the female 5 or 6 months and she seems to have grown maybe half an inch at that time (excluding fins) which seems like not a whole lot.
I recalled reading that orandas don't get their wens until they are around three months and she had a small one so i assumed she was around that old, however I've also read that blue orandas don't always develop large wens (depends on the breeding, and like i said, she's a petshop fish), so it's hard to say. It certainly hasn't gotten any larger in the time that i've had her.