Can Royal Gramma and Three-Stripe Damselfish live together?

Royal Gramma and Three-Stripe Damselfish are not compatible. The comparison on this page runs the same compatibility engine as the tank builder, checking temperature and pH overlap, predation by size, temperament, and known hard-pair conflicts.

Species Comparison

Royal Gramma vs Three-Stripe Damselfish

Royal Gramma

Gramma loreto

Three-Stripe Damselfish

Dascyllus aruanus

Verdict:Not compatible

Side-by-side specs

Basslets

Family

Damselfish

3″

Adult size

4″

30gal

Min tank

30gal

72–80°F

Temperature

72–82°F

8.1–8.4

peaceful

Temperament

aggressive

Solitary

Schooling

Solitary

mid

Water level

mid

Compatibility notes

criticalRoyal Gramma + Three-Stripe Damselfish: Three-stripe damsels claim caves and will fight grammas for territory, usually winning.

Try both in the builder →Compare different species