Thanks guys. The long forward dorsal rays are sort of throwing me off panduro or pandurini. I'm thinking maybe atahualpa but not seeing any with the orange/red seam on the caudal fin.
Baenschi was actually one of the first species that occurred to me since I remember seeing the red seam on a rounded caudal fin on yours. But I didn't consider it likely because of the colour or lack thereof.
I'm thinking the pair in my girlfriend's tank might appreciate some tannins and more cover.