Gisela Bichir Tanzania (Polypterus congicus)
Polypterus is a genus of freshwater fish in the bichir family (family Polypteridae) of the order Polypteriformes. They live in various areas in Africa, including the Nile and the Congo Rivers. Bichirs are primitive fishes and one of the few with lungs that function equally well in water as in air.
Species Information
| Characteristic | Detail |
|---|---|
| Scientific Name | Polypterus congicus |
| Origin | Tanzania, African freshwater habitats |
| Lifestyle | Bottom-dwelling, air-breathing fish |
| Respiration | Uses lungs to breathe air and water |
FAQ
What makes the Gisela Bichir different from other bichir species?
The Gisela Bichir (Polypterus congicus) is native to Tanzania and is adapted to the specific water conditions of the Congo River basin. It has a robust body and strong air-breathing ability, making it well-suited to fluctuating oxygen levels in its natural habitat.
Is this fish suitable for home aquariums?
Yes, this species can thrive in a well-maintained freshwater aquarium with stable water parameters and regular air exposure. It requires a large tank with strong filtration and a secure lid to prevent escape.
What are the ideal water conditions for this fish?
The fish prefers warm, slightly acidic to neutral water with a temperature range of 24–28°C and a pH between 6.0 and 7.5. It also benefits from a well-oxygenated environment.

Carl Cameron –
The Gisela Bichir is a unique and hardy fish that adapts well to my aquarium setup. It stays active and breathes well even when the water is still. I appreciate its calm demeanor and the way it interacts with the environment.
Kimberly Butler –
This bichir has been in my tank for three months and shows no signs of stress. The air-breathing ability is noticeable, especially during temperature changes. It’s a great addition to a diverse freshwater setup.
Emily Cameron –
I was initially skeptical about keeping a bichir, but it has proven to be resilient and easy to care for. The fish is active and curious, and it doesn’t require frequent water changes. A real eye-opener for freshwater enthusiasts.