for my 375 liter tank (after moving) I wanted to take an ugly film a 3D rear wall! I had felt in 20 hunting stores in Munich and an infinite number of Internet companies, everything did not look good, or was too thick, poorly processed (mostly from the Czech Republic or Asia) and took the inhabitants (fish) away too much space. It's an insane great depth, the degree of authenticity of a reef wall or stone wall is not to exceed. The process ie saw and glue with silicon was super easy! The plates grip when baying so into each other even the fissures and cracks continue the it! I can only recommend at the request of a 3D wall and a desired super depth access here. Why I was the first customer, I do not know, but I can think myself reluctant to buy products where can I find any review! Thank God I did it here (risk free). Absolute TOP BUY recommendation for a super real underwater landscape, the Swedes have the get super out ;-)