Can african cichlids live with arowanas?

Verdict
No

No. African cichlids and arowanas should not share a tank. Different water: african cichlids want pH 7.8–8.6, arowanas want pH 6–7.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°African cichlid 75–82°Silver arowana 75–86°
The green band is the temperature range both can live in.
456789African cichlid 7.8–8.6Silver arowana 6–7
No pH suits both. One would live in the wrong water all the time.

Size to scale

African cichlid · 5 inSilver arowana · 36 in0"6"12"18"24"30"36"
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

African cichlidSilver arowana
Temperature75–82 °F75–86 °F
pH7.8–8.66–7
Adult size5.0 in36.0 in
Minimum tank55 gal250 gal
TemperamentAggressiveAggressive
Swims atAll levelsTop
GroupGroups of 6+One per tank
DietHerbivoreCarnivore

Better tank mates for african cichlids

All african cichlid tank mates

Questions

Can african cichlids live with arowanas?

No. African cichlids and arowanas should not share a tank. Different water: african cichlids want pH 7.8–8.6, arowanas want pH 6–7.

What temperature suits both african cichlids and arowanas?

75–82 °F. African cichlids need 75–82 °F, arowanas need 75–86 °F.

What size tank do african cichlids and arowanas need together?

At least 250 gal, set by the silver arowana. Add space for each extra fish.