Collection: Hatchetfish for Sale – Peaceful Surface-Swimming Schooling Fish

Hatchetfish are peaceful top-dwelling freshwater fish loved for their unique body shape, surface-swimming behavior, and good compatibility in planted and community aquariums.

These distinctive schooling fish spend most of their time near the top of the aquarium, making them a great choice for hobbyists who want to add activity to the upper level of the tank. Their unusual hatchet-shaped body and calm temperament make them a popular addition to peaceful freshwater setups.

Popular species include Silver Hatchetfish, Marble Hatchetfish, Blackwing Hatchetfish, and Common Hatchetfish, all known for their unique surface-dwelling behavior and peaceful community temperament.

Hatchetfish do best in groups and are especially popular in planted aquariums, blackwater-style tanks, and natural community displays.

Size at Sale: Varies by species, often around ~1–2 inches

Hatchetfish Species, Adult Size and Water Parameters

Hatchetfish are distinctive South American freshwater fish with a slender body seen from above, an upturned mouth adapted for surface feeding, and large pectoral fins. Common or silver hatchetfish (Gasteropelecus sternicla) generally reach around 2–2.5 inches as adults, while marbled hatchetfish (Carnegiella strigata) usually remain smaller, around 1–1.5 inches. Species and current availability vary, so confirm the identification and adult size of the fish you select.

Many commonly kept hatchetfish prefer stable, clean, soft to moderately soft water, often slightly acidic to near-neutral (approximately pH 6.0–7.5) and temperatures around 75–82°F. These are broad care guidelines rather than a substitute for species-specific preferred water parameters. Changes should be gradual, and ammonia and nitrite should remain at zero.

Minimum Tank Size, Schooling and Surface Cover

For most hatchetfish, a minimum tank size of around 20 gallons with good horizontal swimming room is a practical starting point; larger groups or larger silver hatchets may benefit from additional space. These peaceful fish should be kept in groups, preferably six or more when the aquarium can accommodate them. Their temperament is peaceful, but they can become stressed by boisterous tankmates or heavy disturbance at the surface.

Floating plants can provide security while leaving open areas for feeding. Indian almond leaves may also be used to create leaf litter and release tannins in suitable blackwater-style aquariums, but they do not replace testing or safe water chemistry. Fit a secure lid and close gaps around equipment: hatchetfish are capable jumpers.

🐟 Why Hatchetfish Are So Popular

• Unique hatchet-shaped body
• Peaceful top-dwelling behavior
• Excellent for community aquariums
• Great for planted and natural-style tanks
• Add movement to the upper level of the aquarium

🌿 Great for Planted and Community Tanks

Hatchetfish are especially useful in aquariums that need more activity near the surface. They do well in planted aquariums with floating plants, driftwood, and subdued lighting that mimics their natural habitat. Their peaceful nature makes them great additions to community aquariums featuring tetras, rasboras, corydoras, and other small schooling fish.

🏠 Recommended Aquarium Size

Most hatchetfish species do best in aquariums of 20 gallons or larger, especially when kept in schools of six or more individuals. Longer aquariums provide more swimming space along the surface and help reduce stress.

🐠 Ideal Tank Mates

• Tetras
• Rasboras
• Corydoras Catfish
• Otocinclus
• Other peaceful community fish

🛠 Hatchetfish Care Tips

• Keep in groups of 6 or more
• Use a secure lid, as hatchetfish can jump
• Provide calm water conditions and surface cover when possible
• Maintain stable water parameters
• Feed small floating or slow-sinking foods

🍽 Recommended Food

• High-quality flakes
• Micro pellets
• Small frozen foods
• Floating foods sized appropriately for the species

Available at Tropical Treasures Wyo

Hatchetfish are peaceful surface-dwelling freshwater fish for planted aquariums and community tanks. Visit Tropical Treasures Wyo in Cheyenne, Wyoming, to shop hatchetfish, tetras, rasboras, corydoras, live aquarium plants, floating plants, fish food, filtration products, and aquarium care essentials. Live fish are available for in-store purchase or local pickup only.

Hatchetfish FAQ

Are hatchetfish peaceful?

Yes. Hatchetfish are peaceful community fish and do best with other calm freshwater species.

Do hatchetfish need to be kept in groups?

Yes. Hatchetfish are schooling fish and should be kept in groups of at least 6.

What level of the tank do hatchetfish use?

Hatchetfish are top dwellers and spend most of their time near the surface.

Do hatchetfish need a lid?

Yes. A secure lid is strongly recommended because hatchetfish are known jumpers.

What size aquarium do hatchetfish need?

Most hatchetfish do best in aquariums of 20 gallons or larger with a secure lid, calm water flow, and open swimming space near the surface.

Are hatchetfish good for planted aquariums?

Yes. Hatchetfish are good additions to planted aquariums and natural community tanks. They appreciate floating plants and spend most of their time near the surface.

📚 Related Collections & Guides

Hatchetfish are peaceful surface-dwelling schoolers that can round out a calm community. They generally pair well with mid-water tetras and rasboras, bottom-dwelling corydoras, and a shrimp clean-up crew. Because they're true jumpers, a tight-fitting lid is a must, and floating live plants help them feel secure at the surface. For more peaceful community ideas, see our guide to the best schooling fish for freshwater aquariums, and browse our other nano fish for a complete planted community.