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Can a Green Eel Live With a Royal Gramma?

✗ Not recommended in most tanks

Verdict from our compatibility engine, assuming a typical 90-gallon reef tank. Score: 0/100.

Why

  • Size capacity hard block: Tank far too small (90gal vs 500gal min for Green Eel)
  • Tank overstocked (572%)

It can work if…

  • Upgrade to a larger tank — this species needs more volume
  • Tank is nearing capacity — consider removing a resident before adding this one

Both species at a glance

Green Eel

Gymnothorax funebris

Aggression:
aggressive
Min tank:
500 gallons
Reef safe:
caution
Diet:
carnivore

Full Green Eel care guide →

Royal Gramma

Gramma loreto

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

Full Royal Gramma care guide →

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