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Can a Blue Green Chromis Live With a Electric Blue Hermit Crab?

✗ Not recommended in most tanks

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

Why

  • Schooling species — Blue Green Chromis needs 5+ companions; add at least 4 more
  • Reef safety hard block: Not reef-safe — Electric Blue Hermit Crab will damage coral/inverts

It can work if…

  • Social concern — review this species' social requirements before adding
  • Schooling species — add at least 4 more companions for best health
  • Reef safety concern — relocate or rehome before adding to a reef tank

Both species at a glance

Blue Green Chromis

Chromis viridis

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

Full Blue Green Chromis care guide →

Electric Blue Hermit Crab

Calcinus elegans

Aggression:
peaceful
Min tank:
10 gallons
Reef safe:
unsafe
Diet:
omnivore

Full Electric Blue Hermit Crab care guide →

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