HUMU HUMU TRIGGER FISH – RHINEACANTHUS – MED APPROX 3″ – 4″
Minimum Tank Size: 100 gallons
Care Level: Easy
Temperament: Aggressive
Reef Compatible: No
Water Conditions: 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.020-1.025
Max. Size: 10″
The Humu Humu features striking coloration with line markings of yellow, blue and orange.
| Specification | Value |
|---|---|
| Species | Rhinecanthus |
| Size (Approx.) | 3″ – 4″ |
| Max. Size | 10″ |
| Tank Size Requirement | 100 gallons |
| Water Temperature | 72-78° F |
| Water pH | 8.1-8.4 |
| Water dKH | 8-12 |
| Specific Gravity | 1.020-1.025 |
| Compatibility | Not reef compatible |
| Temperament | Aggressive |
| Care Level | Easy |
FAQ
What is the ideal water temperature for Humu Humu Trigger Fish?
The ideal water temperature is between 72° F and 78° F.
Can Humu Humu Trigger Fish be kept in a reef tank?
No, Humu Humu Trigger Fish are not reef compatible due to their aggressive nature and potential to damage coral.
What is the expected growth size of this fish?
The fish grows to approximately 3″ to 4″ in size, with a maximum potential size of 10″.

Bella Grant –
The fish arrived healthy and vibrant. The coloration is bright with clear yellow, blue, and orange markings. It’s active and shows interest in the tank environment. Needs a large tank and should not be kept with small or peaceful fish due to its aggressive nature.
Nicholas Parsons –
Great color and movement. Set up in a 100-gallon tank with proper water parameters. It’s not shy and dominates the space. Make sure to provide hiding spots for other fish to avoid conflicts.
Jessica Sharp –
The fish looks impressive and matches the photos. However, it was quite aggressive and chased a smaller fish in the tank. I now keep it alone in a large tank with stable water conditions.