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Can a Blunthead Wrasse Live With a Scarlet Hermit Crab?

~ Possible with caution

Verdict from our compatibility engine, assuming a typical 90-gallon reef tank. Score: 53/100.

Why

  • Known conflict: Thalassoma wrasses eat ornamental shrimp and small motile inverts

It can work if…

  • Upgrade to a larger tank — this species needs more volume
  • Known incompatibility — these species are documented to conflict

Both species at a glance

Blunthead Wrasse

Thalassoma amblycephalum

Aggression:
semi-aggressive
Min tank:
100 gallons
Reef safe:
safe
Diet:
carnivore

Full Blunthead Wrasse care guide →

Scarlet Hermit Crab

Dardanus megistos

Aggression:
peaceful
Min tank:
20 gallons
Reef safe:
safe
Diet:
omnivore

Full Scarlet Hermit Crab care guide →

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