Anyone have experience with P. afer? I love the way they look and have heard they are more diurnal than other knives so I've been considering getting one for my tank. Not sure how it would go with my setup though. I've done some searches on here and am not finding a lot of recent information about them and very little about how they behave with other fish. For anyone who's kept them how do they do with tankmates? My Royal doesn't seem to bother anybody even though he is wayyy bigger than any other fish in the tank and is super shy and reclusive. Might be trading him in if that doesn't change. I've read that afer can be a little nippy but wanted to hear some firsthand accounts from anyone who's kept them. Thanks!