You black phantoms, penguins and black neons are probably shy at the moment as it's still early days but more likely you don't have enough. In a smaller tank a group of ten wuld make them feel secure but in yours with the extra space you'd likely need to up that quite a bit. The other species like the Columbian are simply bolder. So you could up the numbers of the others if you like them or see if they settle in and become more adventurous as you add other fish.
I wouldn't be overly worried about the angels eating the cherry shrimp as you have an elephant nose that will likely reduce the numbers anyway. Sorry I didn't know you were planning a shrimp population before or I would have warned you. It doesn't mean you won't be able to maintain a nice shrimp population but I'd be very surprised if they weren't heavily predated.
Thanks Mort.
The RCS colony is already in. I wonder how much the enose will predate on them, it looks really clumsy and the RCS are quick.
Anyways, it wont be a biggie if I loose some/most.
Fil