[mishu1984]

groupers dont run. they go right into the nearest cave and open up their gills and lock themselves in. many a spearo have lost and bent shafts to groupers. but they cost is definetly worth it. groupers have some of the best meat ever. also, most spearos carry a second gun to brain groupers. you will notice in most Picasso videos that the groupers have 2 or even 3 spears in them and are live and kicking. they are a hardy fish, they arent in the top of their food chain for no reason. an icepick is a good idea. a sharp screwdriver that has been on the bench grinder whill also work. strong is good when it comes to groupers. you might want to go for a 7mm shaft.
be prepared to do a whole lot of searching for groupers. many spearos here in the Persian Gulf use squid to lure them out. just drop of a little bait and come back in 20 mins. all the fish activity will attract the groupers. crabs are also great bait for groupers. just split them open and drop them off to the bottom

beware of eels, they are bigger than what you think and have big teeth and coil up around your shaft. barracudas look mean but are not as dangerous as they look as long as you use common sense and keep your hand out of their mouth.