Silver Hatchet

Overview

The Silver Hatchet (Gasteropelecus sternicla) is a surface-dwelling schooling fish with a distinctive deep chest. They are powerful jumpers — a secure lid is absolutely essential.

Water Parameters

• Temperature: 22–28°C (72–82°F)
• pH: 6.0–7.5
• Hardness: 5–15 dGH

Tank Setup

• Minimum tank size: 90 litres for 6+
• Substrate: Any
• Decor: Floating plants for cover; they occupy the surface
• Cover: ABSOLUTELY ESSENTIAL — they can jump 3+ metres out of the water

Diet

• Base: Floating flake, micro pellets
• Treats: Fruit flies (wingless), small insects, frozen bloodworms
• Note: Surface feeder — food must float

Temperament & Tank Mates

• Temperament: Peaceful, schooling fish
• Best companions: Other peaceful surface and mid-water fish — tetras, rasboras, gouramis
• Schooling: Minimum 6

Common Issues

• INFAMOUS jumpers — a secure lid is non-negotiable
• Can literally fly short distances — escape through any gap
• Surface feeders — need floating foods
• Lifespan: 3–5 years