I picked up this Jag a little over a year ago. When I got him he was about 4" and pretty dark colored, seems to hide a lot at first and not real active. What a difference a year makes. He's now pushing 8" and has so much personality he's like a little puppy. I can't walk by the tank without him following me across the glass or doing something to get my attention. He still has a lot of growing left to do but he's already quite the mini-monster.