The fire-kraken were a non-sentient species of marine predator that dwelt in the deepest oceanic trenches of the planet Nal Hutta within the Y'Toub system of Hutt Space. Their most distinguishing feature was the snake-like tendrils they possessed, which they used to locate and capture prey. The species' presence in the trenches made trench-diving on Nal Hutta particularly dangerous; however in the year 22 BBY, the Nautolan Jedi Kit Fisto claimed that they were no longer a problem, having previously spent a week trench diving on Hutta himself.