An experienced person that keeps TONS of tanks actually put this list together for me and said that this species of knife fish are pretty much laid back and won't go after larger fish.
Also, not getting any oscars.
Alright, so I am about to start a 75 gallon tank (yay) and am going to be housing a few larger, more "aggressive" fish in there. I REALLY like these species here, and wanted to know if they could be housed together? One of each. The aquarium is also going to have live plants and such. It will...