Where are you getting the fish from and what sort of problems are they arriving with, the ones that actually arrive alive?
Various things like: their finnage always looks bad, or they just are extremely skittish when I keep them. They swim, like it's a chore for them , yet, dart around and act skittish whenever someone walks across the room and I've ordered them from 3 different places now, and it's always the same thing. They all just huddle together, never swim around, even after a week or so, Unless I move around the room, then they are skittish like I said before.

It's like, how fish act when you 1st put them into a new tank, only they are the same way all the time.
Any other fish that I have ordered, over the years, Ive never had this problem, other than the 1st few days. Very strange and frustrating! I guess I just happen to be getting bad luck with them. My Angels dont even act like this after a week.

Id settle for just 1 Uaru thats acts normal,.

. But I refuse to give up. My tank 's temperature and numbers are set for the Angels' liking, so Im not sure if that might be effecting it or not?