Thanks for the replies and comments guys. The other half is complete and holds water its been test filled but I don't have enough space like I thought I did to set it up together. I'm trying to figure out a way I could tie the two together without gluing them so they could be broken apart and moved without cutting them apart but when connected the would be the same tank. Toying with the ideas of a big acrylic cylinder glued on the sides then connecting them with some sort of s rubber cuppler or something. Hard to explain what I'm getting at but any ideas anyone? Lol