Can Demasoni Cichlid live with Harlequin Rasbora?

Troubleshooting community setups: see the compatibility result using temperature, pH, GH/KH, adult size, behavior, schooling needs, and predator/prey rules.

Quick Summary: No, this pairing should usually be avoided. We evaluated Demasoni Cichlid and Harlequin Rasbora for 4 specific conflict codes. Plan for at least 55 gallons.

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No, avoid this pairing

Data confidence: high

Verified sources: Mbuna overview | Labidochromis caeruleus overview

demasoni cichlid | harlequin rasbora | demasoni cichlid | harlequin rasbora

Observed photo context

Observed aquarium photo examples

These photos show observed aquarium setups for the selected species. They are useful context, but they do not change the compatibility result or replace tank-size, temperament, group-size, and water-parameter checks.

Harlequin rasboras schooling in a planted aquarium
Harlequin rasboras schooling in a planted aquarium.
Demasoni cichlid with blue and black vertical striping
Demasoni cichlid with blue and black vertical striping.

Water parameter comparison

Demasoni Cichlid temperature74-80F
Harlequin Rasbora temperature72-80F
Demasoni Cichlid pH7.6-8.6
Harlequin Rasbora pH6-7.8
Demasoni Cichlid GH10-20 dGH
Harlequin Rasbora GH2-12 dGH
Minimum tank55 gal
Last updated2026-06-11

Confidence: high. Aggression, predator/prey, shrimp risk, schooling, and tank size rules are evaluated from curated freshwater attributes.

Next steps

Check BioloadCalculate if your tank volume and filtration can support this pairing.Find More Tank MatesSee other compatible species and compare more pairings.Water Parameter CheckConfirm that your tap water matches the selected species.

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