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Can a Royal Gramma Live With a Western Blue Devil?

~ Possible with caution

Verdict from our compatibility engine, assuming a typical 90-gallon reef tank. Score: 55/100.

Why

  • Tank well stocked (156%) — limited headroom
  • Tank poor (90gal for 125.0gal min)

It can work if…

  • Upgrade to a larger tank — this species needs more volume

Both species at a glance

Royal Gramma

Gramma loreto

Aggression:
peaceful
Min tank:
30 gallons
Reef safe:
safe
Diet:
carnivore

Full Royal Gramma care guide →

Western Blue Devil

Paraplesiops meleagris

Aggression:
peaceful
Min tank:
125 gallons
Reef safe:
caution
Diet:
carnivore

Full Western Blue Devil care guide →

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