G'day the village idiot,
Why do want just a pair?
Personally if it were me, I'd be looking at setting up a community tank. A couple of species of dwarf SA cichlids, one or two schools of tetras, some otocinclus catfish to help control algea, some corydoras catfish as clean up crew, and possibly a couple of smaller fancy plecos.
However, hypsophrys nicaraguesis are a very nice looking CA cichlid.
Why do want just a pair?
Personally if it were me, I'd be looking at setting up a community tank. A couple of species of dwarf SA cichlids, one or two schools of tetras, some otocinclus catfish to help control algea, some corydoras catfish as clean up crew, and possibly a couple of smaller fancy plecos.
However, hypsophrys nicaraguesis are a very nice looking CA cichlid.