Super Red
This pic was taken without using the flash light, and the position of the red is at the far side to the tank light (top).

This pic was taken with flash light, the camera is 20cm below the aro level, this angle can enhance the .fluorescent golden reflection (especially for a red kind aro) of the bottom three rows of scale.

Picture was taken without flash light, and two white light source for this picture were used, one from top that shined the 4th and 5th row of scales, the other from front bottom of the tank that shined the lower 1st and 2nd rows of scales.

That's it, enjoy your arowana photo sessions and don't forget to post them up in the gallery for everyone to enjoy !