European Perch (Perca fluviatilis) in a freshwater aquarium
Varies carePeacefulMid dwellerEurope

European Perch

Perca fluviatilis

The European Perch (Perca fluviatilis) is a peaceful fish that's rewarding to keep. Give it a tank of at least 230 litres (61 US gallons), water held at 50-72°F, and a pH of 6.5-7.5.

Care levelVaries
TemperamentPeaceful
Min tank size61 US gal
pH range6.5-7.5
Temperature50-72°F
Max size19.7 in (50.0 cm)
Captive lifespan6-12 years
SchoolingNo
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Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Europe

We don't shade a region on this simplified map - your text may be Europe-only, worldwide, listed as "Various," captive-only, or outside the five areas used in the stocking calculator. That tool still scores whether your fish come from similar parts of the world.

Regional colours match the stocking calculator's origin map.

European Perch Tank Setup

A tank of at least 230 litres (61 US gallons) works well. Keep the water at 50-72°F with a pH around 6.5-7.5, and set up both cover and open swimming space where they spend most of their time (Mid). They grow to around 50 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 European Perches 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.

European Perch Tank Mates

Requires a large tank and good filtration. The European Perch is peaceful, which is the first thing to weigh up when you choose tank mates. At around 50 cm fully grown, it needs tank mates that can hold their own against its size and appetite. 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 European Perches Good for Beginners?

Care demand varies by line and setup. Match the care level to how often you actually test and change water.

European Perch - frequently asked questions

What size tank do European Perches need?

European Perches need a tank of at least 230 litres (61 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 European Perches need?

Keep them at 50-72°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 European Perches eat?

European Perches 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 European Perches good for beginners?

It depends on the setup. Match European Perches to how often you actually test water and perform maintenance.

Common mistakes with European Perches

  • Underestimating tank size - the minimum footprint is 230 litres (61 US gallons); impulse buying into a smaller tank leads to stress and shortened lifespan.

Building a community? Run the full list through the stocking calculator before you add anything else.

Fish to avoid mixing with European Perches

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
  • AxolotlPredator - Axolotl will eat or injure smaller tank mates
  • Crescent BettaPredator - Crescent Betta will eat or injure smaller tank mates