Mytennis fasciatus. Unfortunately I had to pull them again and won't be adding any more. The bass just wouldn't leave em alone no matter how much I fed em. I'd come into the room and there would be water everywhere, SDs tightly huddled and breathing hard, bass looking like they were on edge. When they aren't in the tank, everything is calm. I kinda wonder if their silver color acts like a fish lure and triggers the bass constantly. They acted similar when I had a big brycon in with them as well, just on a lesser scale.