Do you think black skirt tetras would be fine with angelfish. I heard bad and good things happening. I have a 55 gallon tank I know angelfish will probably not mess with the black skirts but will the black skirts mess with the angelfish
If you want a group of big Tetras in an Angelfish tank, look at Bleeding Hearts or Columbians.
Although Skirt Tetras will likely coexist just fine, they tend to be more boisterous.
Depends on the fish and the setup. Like said, black skirts can be maniacs like tiger barbs if there's not enough of them in a particular setup. On the other hand, some angles are big goof balls. Others more territorial / predatorial.