Can GloFish Tetra 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: Likely, when tank size, group needs, and water parameters are handled. We evaluated GloFish Tetra and Harlequin Rasbora for 1 specific conflict codes. Plan for at least 20 gallons.

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Likely compatible with conditions

Data confidence: high

Verified sources: GloFish care guidance | Black skirt tetra overview

glofish tetra | harlequin rasbora | glofish tetra | 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.
Pink GloFish tetra in a planted retail aquarium
Pink GloFish tetra in a planted retail aquarium.

Water parameter comparison

GloFish Tetra temperature72-80F
Harlequin Rasbora temperature72-80F
GloFish Tetra pH6-7.8
Harlequin Rasbora pH6-7.8
GloFish Tetra GH4-18 dGH
Harlequin Rasbora GH2-12 dGH
Minimum tank20 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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