Just to let you know, Redrock didn't get to 16 inches long until she was closer to 1.5 years old. Zoom Zoom is just under 13 inches at about 7.5 to 8 months old. A lot of times when a beardie grows or doesn't is because of genetics.
an 8 month old beardie could be any size depending on how well its been raised since a hatchling, depends on UVB lighting, calcium and multi-vit supplements, how much its been fed, if you let us know the length from nose to tip of tail we could let you know on average whether hes small or not?
oh i also cannot access the link.
It does look a bit small because mine is about the same age and is larger but it could be the photo. My bearded dragon also has a lot of the black and white but not as severe as yours but does anyone know if it's a bad thing?
He is a hansom little chap, does look small but that could be the pic. It is hard to tell as i know i have pics of mine (over a year old) and thay still look smaller depending on surroundings. Jeff was quite dark as a baby and now he is very citrusy yellow. post the size of him if your still concerened as people will have a more accurate idea. But as i said before nice pic.
J&J
my female, Belle, is almost 7 months old & she's 21" long, 470 grams. So you really can't go by age, like someone else posted, genetics and care are a big part