six lines are active, but they spend a lof of there activity in the rocks, I think there are a lot of other wrasses that will give you more of what your looking for, like a carpenter wrasse, flasher wrasse, velvet wrasse.. IMO they spend more time in the open areas.. But, I do love watching my six line clean the other fish, that part is really cool and its a great scavenger.. Ha, I feel like I just contradicted myself, either way wrasses are awesome fish.. Oh, or you could get some blue reef chromis, very pretty and active..
And you probably dont see more bellus' bc of the nice price tag that comes with them.. I got mine from another member ata great price, and would love to have another, but not for $100+..