Maybe as their still settling in but my L001 is a bit nervy still, the L021 is a bit better, mostly as he hasn't many places to go but he isn't bothered about me as long as i don't lift the lid, Gibby obviously and the BNs in the 96. The smaller L021 in the 6ft is normally ok but all the mid-small plecs in the 4ft hide all day.
Generally most will say the same, the big guys even if they have places to go will be a lot braver than the smaller fish. Depends a lot on how long you've had them and how well they've been treated, a happy fish isn't a scared fish.