I couldn't get a still picture of this fish as it keeps on moving very fast. It is about 1" long. Any idea what fish it is ok, after doing lots of research, i finally got this info and pics, but me still not so satisfied It is so "called" Barilius bendelisis and some are found to call it "Apollo Shark"
The vertical height (slim) as well as the markings don't look like that of a giant danio to me. Tough to tell though. My first guess would have been that it was some type of rainbow as well.