When you go after the same fish as a goliath grouper, you may be in for a tug of war—as a fisherman recently learned on a dive off Apalachicola, Florida.

Grayson Shepard was spearfishing for snapper at a shipwreck site in June when he captured a startling video of several goliath groupers trying to take his catch.

After a series of tussles, one of the groupers bends Shepard's spear “so badly it will no longer load into my speargun,” Shepard told National Geographic by email. At one point, several goliaths went after Shepard’s catch at once—and he was briefly pulled along for a wild ride. ("Watch: Grouper Slurps Down A Shark, Not A Typical Meal.")

“I weigh 220 lbs. [100 kilograms], and