Can peacock cichlids live with black skirt tetras?

Verdict
Yes, with care

Yes, with care. Peacock cichlids and black skirt tetras can share a tank, but watch one thing. Different water: peacock cichlids want pH 7.8–8.6, black skirt tetras want pH 6–7.5.

Peacock cichlidPeacock cichlid76–82°F · pH 7.8–8.6 Black skirt tetraBlack skirt tetra70–80°F · pH 6–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–80°Peacock cichlid 76–82°Black skirt tetra 70–80°
The green band is the temperature range both can live in.
456789Peacock cichlid 7.8–8.6Black skirt tetra 6–7.5
No pH suits both. One would live in the wrong water all the time.

Size to scale

Peacock cichlid · 6 inBlack skirt tetra · 2.5 in0"1"2"3"4"5"6"
Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

Peacock cichlidBlack skirt tetra
Temperature76–82 °F70–80 °F
pH7.8–8.66–7.5
Adult size6.0 in2.5 in
Minimum tank55 gal15 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 4+Groups of 6+
DietCarnivoreOmnivore

Better tank mates for peacock cichlids

All peacock cichlid tank mates

Better tank mates for black skirt tetras

All black skirt tetra tank mates

Questions

Can peacock cichlids live with black skirt tetras?

Yes, with care. Peacock cichlids and black skirt tetras can share a tank, but watch one thing. Different water: peacock cichlids want pH 7.8–8.6, black skirt tetras want pH 6–7.5.

What temperature suits both peacock cichlids and black skirt tetras?

76–80 °F. Peacock cichlids need 76–82 °F, black skirt tetras need 70–80 °F.

What size tank do peacock cichlids and black skirt tetras need together?

At least 55 gal, set by the peacock cichlid. Add space for each extra fish.