This is how I have my eggcrate both put together and shown in its 3 seperate pieces. As 1 piece I wasn't able to fit the bottom in the tank. Perfect fit! But the trim got in the way. This plus the tank itself is as far as I am do far. I have more supplies, just don't have anything laid out just yet. Next step is the weedblocker (which apparently is seasonal but I bought on amazon today, coming soon) in assuming I can silicone it to the eggcrate??