Aqua Tools

Compatibility check

Can Green chromis and Royal gramma live together?

Green chromis and Royal gramma can usually live together when the tank is sized for both species and normal group needs are met.

compatible

Quick answer

Recommended minimum tank for this pair: 55 US gal / 208 L. Keep Green chromis at 1+ and Royal gramma at 1+ where those group sizes are greater than one.

Factor breakdown

Factor Result Explanation
Water type OK Green chromis is saltwater; Royal gramma is saltwater. Compatibility pages are generated only for matching water types.
Temperature OK Temperature overlaps at 24-27 C. Green chromis is listed at 24-27 C; Royal gramma is listed at 24-27 C.
pH OK pH overlaps at 8-8.4. Green chromis is listed at 8-8.4; Royal gramma is listed at 8-8.4.
Salinity OK Salinity overlaps at 33-35 ppt. Green chromis is listed at 33-35 ppt; Royal gramma is listed at 33-35 ppt.
Adult size and predation OK Adult sizes are not an obvious predator-prey mismatch (Green chromis: 9 cm; Royal gramma: 8 cm).
Temperament and aggression OK Green chromis (peaceful to semi-aggressive schooling) and Royal gramma (peaceful to territorial) do not have an obvious aggression clash in the dataset.
Fin nipping risk OK The dataset does not flag this pair as a fin-nipper plus long-finned combination.
Schooling and group needs OK Neither species requires a large school in this dataset, though normal social behavior still matters.
Explicit avoid tags OK No explicit avoid-tag conflict was found between these two records.
Minimum combined tank size OK Use at least 55 US gallons (208 L) for the pair, based on the larger minimum tank plus bioload and activity adjustments where relevant.

Species profiles

Related compatibility checks

Sources and attribution

Source links are verification references for taxonomy and identifiers. Care values are AI-generated from common hobby consensus and need expert review.