cute. my pleco (sadly) died about a week ago, but I just recently bought a new one.( lfs said it was a bushynose, but he sure looks like a bristlenose. not sure how much of a difference there is between the two...) He's about twice the size of any I've ever had. If I were to guess his size, I would say he is probably almost 4 inches. I'm hoping he gets bigger, possibly around 6 inches but it sounds like he is probably full grown. Here is a decent picture I got of him two days after I got him.
Here he is! His name is Uncle Bobby. (sorry it's a bit blurry and there are a few water stains on the outside of the tank.)