I was told some of my fish were hiders and I would rarely see them. 2 firefish,and a midas blenny. None of them hide at all, they stay out all day, so none of my fish are really boring except maybe my tiny blue chromis, I think he misses his 2 buddies that I lost (got 3 tiny chromis as first fish, 2 didn't make it) he just kinda stays in 1 spot unless its time to eat, then he gets real active!