Reef fish
Lionfish
Pterois volitans
A venomous-spined reef fish, native here in the Indo-Pacific (unlike its invasive status in the Atlantic). Common on and inside the Truk wrecks, hovering in the shade of the superstructure.
- Max size
- Up to about 38cm
- Habitat
- Native Indo-Pacific reef and wreck dweller; shelters in wreckage, holds and overhangs.
Best places to dive with Lionfish
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | commonly seen |
| May | commonly seen |
| June | commonly seen |
| July | commonly seen |
| August | commonly seen |
| September | commonly seen |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Lionfish are on essentially every Coron wreck, sheltering in the structure and holds; scorpionfish share the same spots. Reliable year-round.
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | commonly seen |
| May | commonly seen |
| June | commonly seen |
| July | commonly seen |
| August | commonly seen |
| September | commonly seen |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Common on the walls and house reefs, sometimes in loose schools around the Cathedral at Pescador.
| Month | Likelihood |
|---|---|
| January | commonly seen |
| February | commonly seen |
| March | commonly seen |
| April | commonly seen |
| May | commonly seen |
| June | commonly seen |
| July | commonly seen |
| August | commonly seen |
| September | commonly seen |
| October | commonly seen |
| November | commonly seen |
| December | commonly seen |
Frequently seen tucked into wreckage. Native to this region, so a normal resident rather than a pest.
Sources & last checked
Checked July 2026
This is a researched draft, not yet human-verified. The seasonality and logistics are drawn from the sources below — confirm specifics (permits, fees, closures) with an operator before you book.