He's about 1.5 inches and all the books say they max out at 3. He's pretty small but super cute. He shoots around the tank like a hummingbird. He darts from left to right in little jerky movements. I have to sit for abotu 10 minutes before I see him or my paradise come out but it's worth it.
He is always hiding in the caves of rocks I have 99% of the time and the other 1% he's on the pot in the tank.