hillstreams r fascinating bottom feeders because there flat like a 2 inch, harmless, freshwater ray. they love being on the front glass panel at night and look really cute when eating there algae wafers! the only algae they will eat. ure right about the fast moving water but for me getting one just a week ago it's doing fine with the temp being 67 degrees. I only have one and i wonder if they need a buddy, i no they do fight non violently.
