Harlequin Spotted Grunt Sweetlips (Plectorhinchus chaetodonoides)
Reef Compatible: Yes
Care Level: Expert-Only
Disposition: Semi-aggressive
Minimum Tank Size: 125 gallons
Mature Size: 28 inches
Specifications
| Feature | Species |
|---|---|
| Scientific Name | Plectorhinchus chaetodonoides |
| Size (Adult) | 28 inches |
| Recommended Tank Size | 125 gallons |
| Compatibility | Reef compatible |
| Behavior | Semi-aggressive |
FAQ
Is the Harlequin Spotted Grunt compatible with other reef fish?
Yes, it is reef compatible, but requires careful selection of tank mates due to its semi-aggressive nature.
What is the expected mature size of this fish?
The mature size is approximately 28 inches.
What tank size is required for this species?
A minimum tank size of 125 gallons is recommended.

Ryan Slater –
This fish is a striking addition to my reef tank. It has a unique appearance and remains active without causing major aggression. I’ve had it for six months and it’s thriving in a 125-gallon setup. Only recommend for experienced aquarists.
Emily Paige –
The Harlequin Spotted Grunt is visually impressive and quite active. I noticed it occasionally nipping at smaller fish, so I made sure to keep larger, robust species as companions. It’s a good choice for a reef tank with proper care.
Steven Walker –
It’s a beautiful fish, but I found it to be slightly territorial. I had to remove a small shrimp that was near its territory. Overall, it’s manageable with a large tank and careful planning.