Severums would be nice as well - and they can be a bit spicy when it comes to attitude. They also come in several different colors. OR a beautiful Flowerhorn, one would love a tank that size & you can't beat them for personality
Since he has the lower PH he needs to stick to fish from the east side of the Andes mnts.
If it was me I would go solo Oscar, or a solo Severum with 6x redhead geo's and some tall bodied tetras like Bleeding hearts or Black skirts as dithers.
