Longjaw Wrasse (Cheilinus oxycephalus)
Reef Compatible – With Caution
Care Level – Intermediate
Disposition – Semi-aggressive
Min. Tank Size – 150 gallons
Mature Size – 7 inches
| Size | Minimum Tank Size | Behavior |
|---|---|---|
| SHOW 5″ or Above | 150 gallons | Semi-aggressive |
FAQ
Is this fish suitable for a reef tank?
This fish is reef compatible with caution. It may attack or eat certain corals and invertebrates, so careful monitoring and a well-established reef setup are recommended.
What is the expected mature size of this wrasse?
The mature size of this Longjaw Wrasse is approximately 7 inches.
What is the minimum tank size required for this species?
A minimum tank size of 150 gallons is required to properly accommodate this fish.

Claire Welch –
Bought this Longjaw Wrasse for my 150-gallon reef tank. It’s active and curious, but I’ve had to keep an eye on it to avoid any coral damage. It’s not aggressive, just needs space and a stable environment. Overall, a good addition to a well-maintained tank.
Deirdre Harris –
The fish arrived healthy and seems to adjust well. I noticed it occasionally nips at soft corals, so I’ve added some sturdy polyps. It’s semi-aggressive, but not a threat to the main reef structure. A bit of caution is needed, but it’s worth it for the visual appeal.
Jack Reid –
It’s been a few months now and the fish is still active. I’m not sure if it’s fully settled yet. I’ve seen some minor coral damage, so I’m monitoring closely. Not the easiest fish to keep, but it’s interesting to watch.