Did you have to reinforce the beams under that room? It doesn't look like that is your basement. Beautiful tank!
I cut them at 45 degree angles and siliconed them that way. Thankfully this was the flat back style so it was rather simple to do. The most difficult part was cutting the slits for the overflows, took forever and very tedious.Wow that looks great! How did you "wrap" the BG around the overflows, did you miter the background? I love it!