Halfbeak - Silver

Silver Halfbeak (6–7 cm Juveniles/Sub-Adults)

Scientific Name: Dermogenys pusilla
Category: Freshwater Livebearers | Size: 6–7 cm (2.5–2.75 inches) | Temperament: Peaceful to Semi-Aggressive | Origin: Southeast Asia (Captive-Bred)

The Silver Halfbeak (Dermogenys pusilla) is an elegant surface-dwelling livebearer known for its distinctive beak-like jaw and sleek, silvery body. These 6–7 cm juveniles/sub-adults are lively, curious, and ideal for top-dwelling action in a peaceful community setup. With their graceful movements and unique appearance, they bring a touch of the exotic to any aquarium.

Key Features:

• Current size: 6–7 cm

• Unique elongated lower jaw resembling a "halfbeak"

• Shimmering silver coloration with subtle iridescent hues

• Surface dweller – adds activity to the top level of the tank

• Social behavior – thrives in small groups

Water Parameters:

• Temperature: 75–82°F (24–28°C)

• pH: 6.5–7.5

• Soft to moderately hard water

Feeding:

• Carnivorous – prefers small live or frozen foods (e.g., mosquito larvae, daphnia, brine shrimp)

• Will also accept high-quality micro pellets and flakes formulated for surface feeders

• Frequent small feedings support optimal health and activity

Tank Requirements:

• Minimum tank size: 20 gallons (long-style preferred for surface area)

• Tightly fitting lid – excellent jumpers

• Floating plants provide shelter and reduce surface stress

• Keep in groups of 3 or more to encourage natural behavior

• Best with peaceful mid- to bottom-dwelling species that won’t compete at the surface

Ideal For: Aquarists seeking a graceful, top-level fish that brings unique behavior and appearance to community or species-specific tanks. Perfect for those interested in livebearers with a bit of flair and a peaceful yet interactive presence.