Just wanted to share something that I've never seen nor heard of before, got home a minute ago to find my angelfish tearing off black hair algae off my amazon sword! How nice of him! Lol if you have a bba problem get an angel! There's an unconventional idea.... (In all seriousness though dont do that...) I just thought its so funny how I bought snails and Otto's to do this and the one that finally does this is the angel...nyah nyah nyah