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Can a Blunthead Wrasse Live With a Pajama Cardinalfish?

~ Possible with caution

Verdict from our compatibility engine, assuming a typical 90-gallon reef tank. Score: 65/100.

Why

  • Tank borderline (90gal for 100.0gal min)
  • Schooling species — Pajama Cardinalfish needs 5+ companions; add at least 4 more

It can work if…

  • Upgrade to a larger tank — this species needs more volume
  • Social concern — review this species' social requirements before adding

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 →

Pajama Cardinalfish

Sphaeramia nematoptera

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

Full Pajama Cardinalfish care guide →

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