Yes they can be kept with arowana, tank mates ( floron ,oscar,parrot,green teror, knife fish) read more
There should be not more than one adult arowana in a tank, since this fish tends to be aggressive to the species of its kind. Silver arowana can be kept together with other middle-sized tank fish (green terror, black ghost knifefish, parrot cichlid, large botia fish, saifin pleco, freshwater angelfish). Breeding. The fish doesn’t breed in captivity. read more
As long as the African cichlids are roughly the same size and aggression level as the blood parrots the fish should be compatible. Kribensis (Pelvicachromis pulcher), among the most popular west African cichlids, exemplify African cichlids that have proved to be good tank mates for blood parrots. read more