Well my fave nano is a 3 gal eclipse. I do a one gallon water change a week. I have 2 cory haphetus and 2 gold white clouds and some red shrimp. It is heavily planted with ricca, water wisteria, one dwarf sword, and anachris.
Bunches of tanks.
Reef, Planted, vivarium, terriarium, salt.
I worked my self up from nothing to a state of extreme poverity