Rainbow Featherfin

The Rainbow Featherfin is a delicate, eye-catching freshwater fish known for its flowing, thread-like fins and shimmering pastel body tones of blue, pink, and gold. Graceful and peaceful, this stunning nano species adds movement and elegance to planted aquariums.

Temperament: Peaceful
Difficulty Level: Moderate (best for stable tanks)
Adult Size: 1.5–2 inches
Lifespan: 3–5 years
Tank Size: 15–20 gallons minimum
Temperature: 75–82°F
pH: 6.0–7.5
Water Hardness: Soft to moderately hard

✔ Keep in groups of 6 or more
✔ Best in heavily planted tanks
✔ Gentle flow — strong currents can damage fins
✔ Provide floating plants for comfort
✔ Stable, well-cycled water is important

Males display the longest flowing fins and brightest colors when kept in groups.

 Food

Rainbow Featherfins have small mouths and prefer fine foods:

• High-quality micro pellets

• Crushed flakes

• Baby brine shrimp

• Microworms

• Daphnia

Feed small portions 1–2 times daily. Variety helps enhance color and health.

Fun Facts

• Males “flare” their long fins during courtship displays.
• Their delicate fin rays can grow dramatically long in healthy conditions.
• They originate from northern Australia and New Guinea.
• In calm, planted tanks, they look like they’re floating in slow motion.