Can african cichlids live with harlequin rasboras?

Verdict
No

No. African cichlids and harlequin rasboras should not share a tank. African cichlids are aggressive and will bully peaceful harlequin rasboras.

African cichlidAfrican cichlid75–82°F · pH 7.8–8.6 Harlequin rasboraHarlequin rasbora72–80°F · pH 6–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–80°African cichlid 75–82°Harlequin rasbora 72–80°
The green band is the temperature range both can live in.
456789African cichlid 7.8–8.6Harlequin rasbora 6–7.5
No pH suits both. One would live in the wrong water all the time.

Size to scale

African cichlid · 5 inHarlequin rasbora · 2 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

African cichlidHarlequin rasbora
Temperature75–82 °F72–80 °F
pH7.8–8.66–7.5
Adult size5.0 in2.0 in
Minimum tank55 gal10 gal
TemperamentAggressivePeaceful
Swims atAll levelsMiddle
GroupGroups of 6+Groups of 6+
DietHerbivoreOmnivore

Better tank mates for african cichlids

All african cichlid tank mates

Better tank mates for harlequin rasboras

All harlequin rasbora tank mates

Questions

Can african cichlids live with harlequin rasboras?

No. African cichlids and harlequin rasboras should not share a tank. African cichlids are aggressive and will bully peaceful harlequin rasboras.

What temperature suits both african cichlids and harlequin rasboras?

75–80 °F. African cichlids need 75–82 °F, harlequin rasboras need 72–80 °F.

What size tank do african cichlids and harlequin rasboras need together?

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