I am having a hard time trying to decide which Tetra I would like in my tank. I had originally planned on black skirt tetras but recently discovered congo tetras and like that they are so colorful. This is my first tank and I had read that black skirt tetras make a good beginner fish but I have seen nothing either way about the congo tetras. I would appreciate any advice as to which of these fish would be more interesting and/or more dificult to keep. Any help would be appreciated, thanks.