THIS IS GREAT STUFF, JUST FOR THE THOUGHT I AM JUST SETTING UP MY FIRST NANO CUBE 12DX, HAVEN'T EVEN ADDED WATER YET, PLAN ON DOING THAT 2MARROW. i THINK I WILL GO GET MY DREMEL AND START MAKING THE PERMENANT SKIMER, HOW LONG ARE THE SLITS YOU HAVE CUT?? i DON'T C MYSELF ADDING ANOTHER PUMP...