I am splitting a 36X18 tank into two 18 cubes. I got this tank off Craigs List for $50. I am using a Zoo Med cork 18X18 cork background as my divider and I just siliconed it into place. I siliconed on some cork pieces and will use Great Stuff in between and around them and I will also use in on the backside of the divider that is bare. This tank is going to house standard Leucs on one side and my new pair of banded Leucs on the other. Here are some pictures of the first part. I will take picutres and post as I go.