yeah I asked because I think my own tank really sits on the borderline between nano and not-nano. It seems that nano tanks give a sense of pride to people who keep them but for normal tanks it's as though it's "go big or go home".

It's a little bigger than a nano but not big enough for a tang. it's running zeovit in a 1.5L reactor, yet it has a hang on skimmer. the hang on skimmer's in the sump and the sump's pushing aproximately 500gph. so it's really sitting in both worlds the tank :)