Can convict cichlids live with harlequin rasboras?

Verdict
No

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

Convict cichlidConvict cichlid74–82°F · pH 6.6–7.8 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: 74–80°Convict cichlid 74–82°Harlequin rasbora 72–80°
The green band is the temperature range both can live in.
456789Both: 6.6–7.5Convict cichlid 6.6–7.8Harlequin rasbora 6–7.5
The green band is the pH both tolerate.

Size to scale

Convict 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

Convict cichlidHarlequin rasbora
Temperature74–82 °F72–80 °F
pH6.6–7.86–7.5
Adult size5.0 in2.0 in
Minimum tank30 gal10 gal
TemperamentAggressivePeaceful
Swims atBottomMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for convict cichlids

All convict cichlid tank mates

Better tank mates for harlequin rasboras

All harlequin rasbora tank mates

Questions

Can convict cichlids live with harlequin rasboras?

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

What temperature suits both convict cichlids and harlequin rasboras?

74–80 °F. Convict cichlids need 74–82 °F, harlequin rasboras need 72–80 °F.

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

At least 30 gal, set by the convict cichlid. Add space for each extra fish.