African Snakehead
Parachanna obscura
The African Snakehead (Parachanna obscura) is an aggressive fish that's rewarding to keep. Give it a tank of at least 280 litres (74 US gallons), water held at 79-86°F, and a pH of 6.5-7.5.
Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Africa
- Africa
Regional colours match the stocking calculator's origin map.
African Snakehead Tank Setup
Treat 280 litres (74 US gallons) as a starting point - big predators need length, strong filtration, and a secure lid. Hold the water at 79-86°F and pH 6.5-7.5, and assume anything small enough to swallow will eventually be eaten. They grow to around 45 cm, so plan the tank size and filtration for a full-grown adult rather than the small juvenile you see in the shop.
What Do African Snakeheads Eat?
They're not fussy eaters - feed a varied diet, rotating good-quality dry, frozen, and gel foods rather than the same thing every day, and match the food size to their mouths.
African Snakehead Tank Mates
Requires a large tank and good filtration. The African Snakehead is aggressive, which is the first thing to weigh up when you choose tank mates. It's predatory, so anything small enough to fit in its mouth will be treated as food rather than a companion. Before you buy, run your full stocking list through our stocking calculator. It weighs temperament, adult size, and water needs together, which a single species page can't do on its own.
Are African Snakeheads Good for Beginners?
Care demand varies by line and setup. Match the care level to how often you actually test and change water.
African Snakehead - frequently asked questions
What size tank do African Snakeheads need?
African Snakeheads need a tank of at least 280 litres (74 US gallons). A bigger tank is always easier to keep stable, and gives them more room to settle in and behave naturally.
What water parameters do African Snakeheads need?
Keep them at 79-86°F with a pH of 6.5-7.5, steady rather than chased to an exact figure. In a cycled tank, ammonia and nitrite should both read 0 ppm, with nitrate kept low through regular water changes.
What do African Snakeheads eat?
African Snakeheads are omnivores and aren't fussy eaters. Feed a varied mix of good-quality dry, frozen, and gel foods, and match the food size to their mouths. Feed small amounts once or twice a day, and remove anything they don't eat.
Are African Snakeheads good for beginners?
It depends on the setup. Match African Snakeheads to how often you actually test water and perform maintenance.
Common mistakes with African Snakeheads
- Underestimating tank size - the minimum footprint is 280 litres (74 US gallons); impulse buying into a smaller tank leads to stress and shortened lifespan.
- Cool tap water - this species needs 79-86°F; cold acclimation suppresses immune response and often triggers disease outbreaks.
Building a community? Run the full list through the stocking calculator before you add anything else.
Great tank mates
Chosen from temperament, overlapping temperature/pH bands, plausible minimum tank footprints, and size versus yours in App-aquatic data. Hobby nuance always wins - verify stocking and temperament before purchasing.
Check African Snakehead against any other fish → Compares water parameters, predation risk, fin nipping and tank size, and draws both at life size.
Fish to avoid mixing with African Snakeheads
These well-known species are commonly sold alongside this fish but are not recommended tank mates - verify before purchasing.
- OscarPredator - Oscar will eat or injure smaller tank mates
- Neon TetraSize risk - African Snakeheads will likely eat Neon Tetra at adult size
- Common GoldfishGoldfish - prefer cooler, harder water that tropical fish cannot tolerate
