ah like mine..., i keep milawies in mine, but i always wanted something else too,How about some puffers(brakish waters)... they are so under rated..., figure8 puffers are cool, but they need coral to heep there beaks at bay, you can feed them clams(with the shell), raw shrimp, crafish and they wat them with the shell... and they need plants too so that they dont run into rachother too often...
mine is a bit older and made from1/2" thick glass, it doesnt have a brace... I guess they made them diffrently 20 years ago...