Fasciatus are intolerant of anything if they(fasciatus) are big enough to challenge it & slow enough to catch. The tankmates would have to be an aggressive CA/SA cichlid as no african can match the fury. Yes 1 solo male will look nice but these are so few & far between you'd do better breeding them. the irony if once you get a pr. keep other fish on the opposite side of a divider so the pr. will keep trying to kill them & not each other.They will breed These are the largest hemichromis.