Can congo tetras live with peacock cichlids?

Verdict
Yes, with care

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

Congo tetraCongo tetra73–82°F · pH 6–7.5 Peacock cichlidPeacock cichlid76–82°F · pH 7.8–8.6

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 76–82°Congo tetra 73–82°Peacock cichlid 76–82°
The green band is the temperature range both can live in.
456789Congo tetra 6–7.5Peacock cichlid 7.8–8.6
No pH suits both. One would live in the wrong water all the time.

Size to scale

Congo tetra · 3 inPeacock cichlid · 6 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

Congo tetraPeacock cichlid
Temperature73–82 °F76–82 °F
pH6–7.57.8–8.6
Adult size3.0 in6.0 in
Minimum tank30 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 6+Groups of 4+
DietOmnivoreCarnivore

Better tank mates for congo tetras

All congo tetra tank mates

Better tank mates for peacock cichlids

All peacock cichlid tank mates

Questions

Can congo tetras live with peacock cichlids?

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

What temperature suits both congo tetras and peacock cichlids?

76–82 °F. Congo tetras need 73–82 °F, peacock cichlids need 76–82 °F.

What size tank do congo tetras and peacock cichlids need together?

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