Barilius ardens

Barilius ardens (often called the Red Spot Hill Trout or Orangefin Hill Trout) is a striking freshwater fish native to fast-flowing hill streams and rivers in parts of India, particularly the Western Ghats. It is known for its vibrant colors, including bright orange-red fins and iridescent blue-green body markings.

Description:

• Size: Typically grows up to 4-5 inches (10-12 cm) in captivity.

• Coloration:

  • Males display brighter colors, with fiery orange-red fins and a silvery-blue body with vertical bars.

  • Females are slightly duller in color.

• Behavior: Active, schooling fish that prefers swimming in groups.

• Habitat: Naturally found in well-oxygenated, fast-flowing streams with rocky substrates.

Care Tips for Barilius ardens:

1. Tank Setup:

• Tank Size: Minimum 30 gallons (long tanks are better for swimming space).

• Water Parameters:

  • Temperature: 68–75°F (20–24°C)

  • pH: 6.5–7.5

  • Hardness: Soft to moderately hard water (5–12 dGH)

• Filtration & Flow: Strong water movement (use a powerhead or canister filter) to mimic their natural habitat.

• Substrate & Decor: Smooth rocks, pebbles, and driftwood to replicate a riverine environment.

• Plants: Hardy plants like Java Fern or Anubias (they may not thrive in high-flow areas).

2. Diet:

• Omnivorous but prefers live/frozen foods:

  • Bloodworms, brine shrimp, daphnia, and small insects.

  • High-quality pellets/flakes can be supplemented.

• Feeding Frequency: 2–3 times daily in small amounts.

3. Tank Mates:

• Best kept in a species-only tank or with similar-sized, active fish (e.g., Danios, Rasboras, or other hill stream species).

• Avoid slow-moving or long-finned fish.

4. Behavior & Schooling:

• Keep in groups of 6 or more to reduce stress and encourage natural behavior.

• Males may display territorial behavior; provide ample space.

5. Water Quality & Maintenance:

• Perform weekly 30% water changes to maintain clean, oxygen-rich water.

• Ensure high dissolved oxygen levels (use an air stone if needed).

6. Health Considerations:

• Sensitive to poor water conditions—monitor ammonia, nitrites, and nitrates.

• Prone to stress in stagnant water—ensure strong flow.

Breeding (Advanced):

• Breeding in captivity is rare but possible in a well-maintained, species-specific setup.

• Requires cooler water changes and a high-protein diet to trigger spawning.

Conclusion:

Barilius ardens is a beautiful but somewhat demanding fish that thrives in well-oxygenated, fast-flowing setups. With proper care, it can be a stunning addition to an active aquarium.