Looks exactly like mine. I got mine at 1" though. Same listed in RT, but knew it was a flowerhorn. I initially started with freeze dried krill and blood worms, but just today after nearly 2 weeks I was able to get him to take NLS. Doing 1-2x a week 50-60% water changes.
I got him June 2nd at 1", and today he's about 2 1/4". I've seen a couple of these lately on this site, all coming from petsmart so they're rare but they're out there. Looking forward to how it ends up.
What are you feeding yours/how often? W/c schedule?