Overview
The Purple Firefish (Nemateleotris decora) is a beginner saltwater species known for its white, purple-red tail coloration. Purple and red variant. Mid.
Origin & Appearance
Origin: Indo-Pacific.
Colors: White, Purple-Red tail.
Body Shape: Fusiform (torpedo/streamlined). Typical adult dimensions: 9.0 x 1.6 x 2.7.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 20 gallons |
| Temperature | 75–79°F |
| pH Range | 8.1–8.4 |
| Water Hardness (GH) | dKH 8-12 |
| Bioload | low |
| Oxygen Demand | low |
| Plant Safe | yes |
| Aquarium Position | Mid |
Behavior & Activity
Mid-water hoverer facing current; dorsal fin flicks nervously; disappears into burrow at first sign of threat
Speed: 40/100Aggression: 2/10diurnal
Breeding
Moderate; egg depositor in burrow
Common Diseases
💊 Ich
Expert Notes
Purple and red variant