You were asking if Anglers were hard to keep. I have kept Anglers since I was a teenager (20+ years). It really depends on the angler. If you can get one that will eat frozen out of your hand or off a stick, you should have no problem. If you are willing to get ghost shrimp or (sorry everyone) put out the money to feed damsels or peppermint shrimp, you can go that way. I actually had a very small one once that would swin into a net to get at guppies. (this was in the 70's when we didnt know any better than to feed freshwater).
Ask your LFS how they are eating and watch them eat.
Hopefully you get a good one, because they are not cheap.
I got my latest one from Live Aquaria and he eats off a feeding stick (I WAS LUCKY) :bowing: