Overview
The Dragon Wrasse (Novaculichthys taeniourus) is a intermediate saltwater species known for its brown-green (adult), green-white (juvenile mimic) coloration. Juveniles look like floating seaweed. Mid to Bottom.
Origin & Appearance
Origin: Indo-Pacific.
Colors: Brown-Green (adult), Green-White (juvenile mimic).
Body Shape: Fusiform (torpedo/streamlined). Typical adult dimensions: 30.0 x 5.4 x 9.0.
Sexual Dimorphism: Strong; sequential hermaphrodite; terminal males more colorful.
Tank & Water Requirements
| Min Tank Size | 79 gallons |
| Temperature | 75–81°F |
| pH Range | 8.1–8.4 |
| Water Hardness (GH) | dKH 8-12 |
| Bioload | high |
| Oxygen Demand | medium |
| Plant Safe | yes |
| Aquarium Position | Mid to Bottom |
Behavior & Activity
Juvenile: floating seaweed mimic drifting in current; adult: powerful sand-flipping prey hunter; dramatic behavioral shift
Speed: 40/100Aggression: 5/10diurnal
Breeding
Not bred at home; pelagic spawner
Common Diseases
💊 Ich
Expert Notes
Juveniles look like floating seaweed; aggressive adult