Mine was probably 5-6 inches head to tail and now he’s right about at a foot. He’s an eater though. Not picky at all.
You will definitely need to upgrade his tank though. Sounds like he has almost outgrown it and may be limiting his growth. Not sure about beardies but some species only grow as big as they see fit given their habitat.
He doesn’t seem to be struggling with food even though he should be trying to hit that 30 or more bar, but depends on the size of his food. Shouldn’t be any larger than the space between his eyes and dusted with calcium.
What kind of UVB are you using? And are his temps high enough? Temps and lighting are essential for proper digestion and utilizing the calcium.
