Florida Gulf Coast fisherman and Reddit user Gimbb14 posted to Youtube the video above, featuring a small blacktip shark on the end of a fishing line, while an Atlantic goliath grouper lurks nearby.

PHOTOS: It's a Shark GIF-a-Palooza

What follows is not for the feint of heart, if you're a fan of sharks. The blacktip shark, estimated at about 4 feet long by Gimbb14, is caught on the line but in the blink of an eye the grouper appears and the entire shark disappears.

Goliath groupers come by their name honestly. They can grow to around 8 feet long and can weigh nearly 800 pounds.