A well planted angel tank with a small pile of rocks in which a fancy plecostomus could inhabit. and a pictus catfish too just to swim about. also a shoal of cardinals or something colourful as they are
Sand/aquatic soil/some sprinkles of large gravel mix as the substrate. Loads of java moss, elodea and windelov java fern(keeping it simple with easy plants). A few small pieces of bogwood scattered on the ground and some tall stones that reach the half way up to the top of the tank.
I'd have one 200 watt heater set to 25 degrees celcius for the day(turns off at night using a timer) and one set to 22 degrees celcius for the night also using a simple plug timer(simulates day/night cycle). I would have a regular tropical T8 tube for the day and a moonlight for the night. Also two fluval 4 plus internal filters and a small airstone at the back(just because i can).
Now stocking-a shoal of 6 of whatever corydoras take my fancy at the lfs, a couple of mosquito fish, 6 rosy red minnows and a pair of Kribensis. A bit strange i know but i'd love it. Also i would add around 10 amano shrimp, an apple snail and of coarse i would put any triops that were over 1.5 inches in there(i would have a small 3gal with an airstone and 25 watt heater set to 23 degrees celcius for raising them up to that point).