Krieg's Mini Tetra (Serrapinnus kriegi) – 2–2.5 cm

Species Overview

Krieg's Mini Tetra is a small, elegant freshwater fish native to rivers in Argentina and Paraguay. It has a slender, translucent body with a distinctive black spot near the tail. This peaceful species is ideal for community tanks and is best kept in groups to display its natural schooling behavior.

Aquarium Setup & Care Instructions

Tank Size & Environment

• Minimum tank size: 10 gallons for a small group.

• Substrate: Dark-colored sand or fine gravel to enhance colors.

• Decor: Include dense plants, driftwood, and leaf litter to mimic natural habitat. Floating plants provide extra cover.

• Water Parameters: Temperature 22–26°C (72–79°F), pH 6.0–7.5, soft to moderately hard water.

• Filtration: Gentle filtration is recommended; avoid strong currents.

Behavior & Tankmates

• Peaceful and non-aggressive.

• Best kept in groups of 6 or more to encourage natural schooling.

• Compatible with other small, peaceful community fish.

Diet

• Omnivorous.

• Feed a varied diet including high-quality flake foods, live or frozen foods like brine shrimp and daphnia, and occasional vegetable matter.