Fish food cube splitter

I wanted a way to cleanly split blood worm cubes as my aquarium only needs half a cube so I made this. All you need a is a razor Blade as the 3d printed slicer didn't work well. You just put the cube in the top and use the lid to push down and split it. This lets you just put the other half back in the freezer for later. although it says you don't need other hardware it needs a single edge razor blade like that seen in the picture.