Abstract: A leech keeper including: a hollow wall container with threads positioned on the top exterior; a nested strainer including holes in the sides and bottom with a weight string hole affixed to the bottom and a lip at the top with interior threads; and a lid including a hollow portion for flotation, interior threads for screwing onto the container holding the strainer, and exterior threads for engaging with the interior threads of the strainer. The double-lined construction of the container keeps the water cool for extended periods of time and provides a watertight container for storage and flotation of the leeches. This provides an environment for the leeches to remain healthy and to live longer, ensuring better fishing.