X-ray tetra generally don't seem to get much love or niche following, my son chose these as his fish for the tank when we st it up and I have to say they are probably the most fun to watch, here is a video of them schooling to simulate some upstream river battles......
http
/www.youtube.com/watch?v=Aw4uDZMnNoo&feature=youtube_gdata_player
http
/www.youtube.com/watch?v=Aw4uDZMnNoo&feature=youtube_gdata_player
