Black Widow Tetra, white 2,5-3,5 cm Gymnocorymbus ternetzi

Tetra (Characidae) is a freshwater aquarium species from South America. Below are the typical care conditions that keep it healthy and thriving.

Care requirements

• Water type: freshwater.
• Recommended tank size: at least approx. 80 l.
• Temperature: 23–27 °C.
• Adult size: approx. 4 cm.
• Temperament: peaceful.
• Care level: beginner.

Feeding

Diet: omnivore. Offer varied, species-appropriate food in several small portions a day for the best colour and condition.

Suitability and tankmates

House it in a sufficiently large, mature freshwater aquarium. Choose tankmates according to its temperament (peaceful) and size, and provide hiding places and stable water quality.

Frequently asked questions

How large a tank is needed?
At least about 80 litres; a larger tank offers more stable conditions.

What temperature should the water be?
About 23–27 °C suits this species.

Akvaariokeidas is a Finnish aquarium specialist store. We are happy to help you choose the right species and equipment.