Tinfoil Barb

The Tinfoil Barb is an impressive, fast-growing barb species native to Southeast Asian rivers and streams. Named for their metallic, reflective silver scales that resemble tinfoil, these fish can reach up to 14 inches in length and require substantial aquarium space. They feature distinctive red or orange dorsal and caudal fins that create a striking contrast against their silver bodies. Tinfoil Barbs are active, powerful swimmers that need plenty of open water to exhibit their natural behaviors. While generally peaceful, their size and boisterous swimming style means they are not suitable for community tanks with small or delicate species. They are known to be plant nibblers, so careful plant selection is necessary. Their impressive size and schooling behavior make them a centerpiece species for large aquariums.

Care Requirements

Tank Setup

Tinfoil Barbs require a very large aquarium of at least 75 gallons for juveniles, with 100+ gallons needed for adults. They need extensive open swimming areas as they are powerful, fast swimmers. Use robust filtration capable of handling their waste production. Subdued lighting and minimal plants (or tough species like Anubias and Java Fern) work best as they may eat delicate vegetation.

Water Quality

• Temperature: 72-77°F (22-25°C)
• pH: 6.5-7.5
• Water Hardness: Moderate, 5-15 dGH
• Ammonia/Nitrite: 0 ppm
• Nitrate: <30 ppm

Feeding

These omnivores have hearty appetites and accept a wide variety of foods. Offer high-quality large pellets, algae wafers, blanched vegetables like zucchini and cucumber, and protein sources such as frozen bloodworms or brine shrimp. Feed 2-3 times daily with portions they can consume in a few minutes.

Behavior & Compatibility

Tinfoil Barbs are schooling fish that should be kept in groups of 5 or more. They are generally peaceful but their large size and active nature can intimidate smaller tank mates. They are best suited for tanks with other large, robust fish such as Silver Dollars, Bala Sharks, or large gouramis. Avoid housing with slow-moving or long-finned species.

Tips for Success

• Plan for their adult size when purchasing juveniles; they grow rapidly
• Provide powerful filtration and excellent water circulation
• Keep in groups of 5+ to reduce aggression and encourage natural schooling
• Avoid delicate or expensive plants; use hardy varieties or artificial decorations
• Ensure the tank has a secure, heavy lid as they are powerful jumpers
• Regular large water changes (30-50% weekly) are essential for maintaining water quality