Help Me Choose Fish

[Cloudk]

Hi! So I'm starting up a 100gal(tiny I know). Main residents will be 2 tiger oscars, and I'm looking to put some smaller, yet not bite sized, fish in there. It's a South American tank, so all fish suggestions need to be from SA. Thanks for any ideas!

 

[Racersk]

Convicts stay nice and small and are quick enough to no be food. Get 2 maybe 3 males and some sort of catfish or Bichir (an oddball) and your done. My males paired up with my females and are always flexing at each other! so far convict babies get no further than a grain of long grain rice in my 125g tank