Can a Blue Velvet Nudibranch Live With a Royal Gramma?
✗ 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 — Blue Velvet Nudibranch will damage coral/inverts
- Fully compatible — Royal Gramma is a good fit for this tank
It can work if…
- Reef safety concern — relocate or rehome before adding to a reef tank
Both species at a glance
Blue Velvet Nudibranch
Chelidonura varians
- Aggression:
- peaceful
- Min tank:
- 20 gallons
- Reef safe:
- unsafe
- Diet:
- carnivore