Black Venezuelan Cory

Black Venezuelan (Osteogaster schultzei)

Also known as Gold Flash Cory or Black Schultzei

A peaceful and attractively marked armored catfish from the small watercourses of the Amazon basin. Known in the hobby by names such as “Peru Gold Stripe Cory,” “Gold Flash Cory,” and “Black Schultzei,” this species is appreciated for its striking contrast of dark body coloration accented by golden or yellowish stripes and flashes. Its small size and sociable nature make it an excellent choice for community tanks, planted aquariums, or species setups.

Key Features

• Maximum Size: Typically 5–6 cm / ~2–2.4 inches SL (genus standard).
• Appearance: Compact, armored body with a predominantly dark (black or dark brown) base coloration highlighted by golden or yellowish stripes and flashes. Females grow larger and more full-bodied than males; mature males develop more pointed fin tips. Albino or lighter variants are occasionally seen in the trade.
• Fin Details: Typical for the genus, with rounded to slightly pointed fins depending on sex and maturity.

Aquarium Care

• Tank Size: Minimum 20–30 gallons for a small group (larger is better for active shoaling).
• Water Parameters: Tropical freshwater; 70–81°F (21–27°C), pH 6.0–7.5, soft to moderately hard. Excellent water quality and a soft sand or fine-gravel substrate are essential to protect sensitive barbels. Provide driftwood, plants, and some shaded areas.
• Diet: Omnivorous bottom feeder — readily accepts sinking tablets, granules, flakes, and a variety of live or frozen foods (bloodworm, white worm, daphnia, Tubifex).
• Behavior: Peaceful, sociable shoaling fish that thrives in groups. Excellent community tank inhabitant. Provide driftwood, plants, and open foraging areas with some shaded spots. Breeding is well-documented in captivity, with numerous reports available; females hold eggs between pelvic fins before depositing them on glass or décor.

IUCN Status Not Evaluated