Just finished leak testing and building my new nano frag tank. It is around 3.3 gallons with a custom frag shelf put together with super glue egg crate and PVC it is the first tank I have ever built, started of with 3 12 by 12 acrylic sheets the company sent me to thick and with some scratches but it should do fine. The dimensions are 12 by 12 by 6 still working on the stand I will keep you updated! The frag tank will be mainly used for selling and keeping/fragging zoas and soft coral with some variation. Silicone was gorilla silicone clear, used acrylic cement but left it out to long in the sun and became brittle and bubbly.