Take a look at the following for details mate:
/>http://www.amonline.net.au/FISHES/fishfacts/fish/sgracilis.htm
Grinner is almost emdemic to the passage at bribie, as well as a lot of other places around moreton. It has an unmistakable 'grin' and one hell of a set of choppers.
Nice fine scales which make it great for trolling. excellent as a flesh bait also.
hope this helps.
cheers