Take a look at the fin of the shaft. In such cases careful handling is the only way to land the grouper.
[ame=http://www.youtube.com/watch?v=ZfUXIJXi-7U]YouTube - Long shot on a grouper *spearfishing and freediving*‏[/ame]
[ame=http://www.youtube.com/watch?v=ZfUXIJXi-7U]YouTube - Long shot on a grouper *spearfishing and freediving*‏[/ame]