**Flame Fin Tang - A Brilliant Splash of Color for Your Aquarium**

The Flame Fin Tang (Acanthurus olivaceus), often referred to as the *Yellowtail Tang*, is a vibrant and visually striking fish that adds a splash of fiery color to any marine aquarium. Known for its radiant, orange-red body and contrasting yellow tail, the Flame Fin Tang is a favorite among aquarists who are looking for both beauty and a bit of personality in their tank. With its peaceful nature and relatively hardy disposition, this Tang is a fantastic addition to your reef or fish-only aquarium.

**Key Features:**

- **Size**: Grows to around 8–10 inches in length.

- **Lifespan**: Can live up to 10–12 years with proper care.

- **Coloration**: Bright orange to reddish body with a stunning yellow tail and fins, making it one of the most colorful tang species.

- **Personality**: Peaceful and social, though can show territorial behavior towards other Tangs or similarly-shaped species.

- **Diet**: Herbivorous, feeding on a variety of marine algae, seaweed, and supplemented with occasional meaty foods.

**Tank Requirements:**

- **Minimum Tank Size**: 75 gallons or larger (to accommodate their active swimming habits).

- **Water Temperature**: 75–80°F (24–27°C).

- **Salinity**: 1.023–1.025 SG (specific gravity).

- **pH**: 8.1–8.4.

- **Alkalinity**: 8–12 dKH.

- **Filtration**: Strong filtration is essential to maintain excellent water quality, as this species thrives in well-maintained environments.

- **Tank Setup**: Plenty of live rock and open swimming space. The Flame Fin Tang appreciates a tank with nooks and crannies for occasional hiding and grazing.

Flame Fin Tangs are active swimmers and are best suited for a tank with lots of space to roam. As an herbivore, they will benefit from a diet rich in algae and marine vegetables, so regular supplementation with seaweed is important. Despite their vibrant colors, they are relatively peaceful, but they may become territorial towards other Tangs of similar size or shape.