African Knifefish: Tankmates?

From what I've heard they are not aggressive but they are preditory so dont keep them with anything that can fit in its mouth.
 
I am debating on if to move mine into my 125 or find it a new home. I was sure he would eat the tetras and guppies, wasn't sure about the angel. But I am really more concerned about my cory cats. I know they are small enough to eat, but will it chase a bottom feeder?
 
As long as the angel is good size, it should be alright. Same with the corys, since they have spikes, they have a slight upper hand.

Just make sure they all have a place to hide if needed.
 
Have one now.....with a school of congo tetras, bearded tetras, crayfish, clams, shrimp.
 
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