Royal Gramma tank mates
Gramma loreto
5 rated pairings from the Royal Gramma care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Royal Gramma needs at least 30 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.Ocellaris Clownfish
Amphiprion ocellaris
20 gal min · 3.5" adult · Semi-aggressive
Similar reef-safe temperament and water requirements; occupy different tank zones
Cleaner Shrimp
Lysmata amboinensis
30 gal min · 2.5" adult · Peaceful
Reef-safe invertebrate that occupies different ecological niche
Nerite Snail
Neritina natalensis
5 gal min · 1" adult · Peaceful
Reef-safe algae grazer that poses no threat to the gramma
Good matches
2 · Compatible with normal care — watch space and numbers.Also recommended alongside Royal Gramma
Species whose own guides list Royal Gramma as a tank mate.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.