I am looking to make a C&C cage. I do not have guinea pigs yet, but I plan to get two after everything is ready. I am having no problem finding cloroplast, but I am having trouble finding the cubes. I found the cubes at Target, but I confrimed the ones at my Target are 8x8 and 5x5(?) as mentioned in another thread. I went to Bed, Bath, and Beyond to find the ones listed on this site and found something similar. The grids are 9x9, but they are 14.5" x 14.5". So, although they are 9x9, the holes are a little bigger than 9x9 holes on 14" grids. Mathematically, this comes to about 1.61" per hole, which is a little more than the 1 1/2" on this site. Are the holes small enough for guinea pigs, or do I need the 14" cubes? Please let me know. Thanks!