Thank you! No worries about remembering his name! I'm just a crazy fish keeper who names by fish, haha! Its Falkor btw, after the luck dragon in the Neverending Story. All my predator fish have dragon names. He's doing really well! Definitely grown quite a bit in the 10 months or so that I've had him. He was originally about 9" long and not very big around, but now he's more like 13-14" and bigger around than my thumb. He still seems to have plenty of space in the 40B though. He has a pretty elaborate burrow up under the right hand rock structure and he can completely disappear from site when he wants. He doesn't need swimming space, but he does come out to explore in the evenings. There haven't been any issues with him knocking anything over or aggression todays tank mates though. He does go into a bit of a feeding frenzy when he smells food (his eye site is horrible), so he tends to flail around and just bite at everything, so the other fish have learned to stay out of his way at those times. The rest of the time though, he's super chill and ignores all the other inhabitants. I'm really thrilled with how well he's doing and how well all the tank inhabitants are getting along. Everyone is happy and healthy with no aggression, territory, or stress issues.