I am planning on setting up a 55g frag tank at the end of the summer and trying to think of the best way to layout the shelves. I dont think I want the eggcrage to be snug against the glass because then the snails wont be able to clean much. but if I can somehow make the shelves moveable then I will be able to clean the glass myself and wont need a CUC. but anyways this is what I am thinking so far. any other ideas?