Heres what i was thinking though once water parameters are right:
4 lampeye tetra
5 harlequen rasboras
2 german blue rams
and any type of bottom dweller?
FYI - the tank is a 20 gallon tall.
The lampeye tetra(Red Eye Tetra) is not gonna to work. They grow quite large, almost 3in, need a school of atleast 7,and require atleast a 36in tank because they're active. Another small schooling fish would be better. I would also upgrade to Harlequin to 9, or 10. One Ram would be better than two, unless they're a bonded pair. Also it would be best to think about stocking after you know your parameters.
55 gallon planted tank, starting over!!!( looking crappy, needs a major rescape)