IT COULD only be described as a "mad day of fishing" for Kye Potts and Chad Runnalls at the Urangan Pier on Saturday.
An excited crowd watched on as Mr Potts worked to reel in a massive blue fin tuna but the local grouper, estimated to weigh about 250kg, and a giant trevally had a different plan, chasing down the fish for a feed of their own.
And while the trevally put up a good fight, the grouper won in the end almost swallowing the fish whole.
Chad, who gaffed the tuna at the end of the fight, said Kye did well to hold the weight of the tuna and grouper on only an 80 pound line.
"It was a bit of 'see who can fit the fish in its mouth first' but nine times out of 10 the grouper wins, they're like a vacuum.
It just opens its mouth and just takes the fish.
"When the tuna hit the deck a whole half of it had been grated.
"He (grouper) actually grabbed it at first and tried to swallow it whole, and if he had of swallow it whole you're in big trouble ... but if you keep a bit of tension on the line while it's in his mouth there's a good chance that he'll spit it out, and that's what happened."
The two have now started a Facebook page called Hervey Bay Pier Fishing, where locals can watch videos, find out where the fish are biting, what bait to use and fishing advice.
The tuna was caught using herring for bait.