I've obtained an insulated plastic cooler box. I want to use this when sea fishing to store my catch and keep it chilled as cold as possible until I can get it home. I intend to load a quantity of ice cubes into the bottom of it and drop the caught fish on top of the ice. My question is - Should I fit a spacer mesh platform to allow the meltwater to drain away from the ice, or should I allow the ice to sit in its meltwater ? - Would the effectiveness of the chilling be better using one method rather than the other ? - or would there be no difference ? Would the ice melt faster if it was allowed to float in its melted runoff ?