If you have anytime on Sky+ have a look for Wild Amazon, just watched it, pretty good, has a clip of some Pirana and Arowana and I swear theres a Glow Light Tetra in front of the Arowana.
The main name of the program was called Wild Amazon yes, they they have a sub-title, and they was what I listed above. Was just wondering if you knew what one it was .
I have them both on for recording so I'm sure I'll find out what one it was