Bala sharks like to be in groups of 4-6, ubt you oculdnt house that many in that tank and they eventually get to 30cm.and rummy nose tetras look great in bgger schools of atleast 8 -12.
Now im thinking i might give disucs a go, and put the Bolivian rams and angels in a different tank.
Could i keep discus in this tank?Ifso how many?
If i oculd the only other fish i owuld have is the cardinals and a few young GBA or cory.