Can a Horseshoe Crab Live With a Sixline Wrasse?
✗ Not recommended in most tanksVerdict from our compatibility engine, assuming a typical 90-gallon reef tank. Score: 0/100.
Why
- Reef safety hard block: Not reef-safe — Horseshoe Crab will damage coral/inverts
- Fully compatible — Sixline Wrasse is a good fit for this tank
It can work if…
- Upgrade to a larger tank — this species needs more volume
- Reef safety concern — relocate or rehome before adding to a reef tank
Both species at a glance
Horseshoe Crab
Limulus polyphemus
- Aggression:
- peaceful
- Min tank:
- 180 gallons
- Reef safe:
- unsafe
- Diet:
- carnivore
Sixline Wrasse
Pseudocheilinus hexataenia
- Aggression:
- semi-aggressive
- Min tank:
- 40 gallons
- Reef safe:
- safe
- Diet:
- carnivore