Bluegill Sunfish (Lepomis macrochirus) in a freshwater aquarium
Varies carePeacefulMid dwellerNorth America

Bluegill Sunfish

Lepomis macrochirus

The Bluegill Sunfish (Lepomis macrochirus) is a peaceful fish that's rewarding to keep. Give it a tank of at least 265 litres (70 US gallons), water held at 41-73°F, and a pH of 6.5-7.5.

Care levelVaries
TemperamentPeaceful
Min tank size70 US gal
pH range6.5-7.5
Temperature41-73°F
Max size13.8 in (35.0 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

North America

  • Central America & Mexico

Regional colours match the stocking calculator's origin map.

Bluegill Sunfish Tank Setup

A tank of at least 265 litres (70 US gallons) works well. Keep the water at 41-73°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 35 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 Bluegill Sunfish 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.

Bluegill Sunfish Tank Mates

Requires a large tank and good filtration. The Bluegill Sunfish is peaceful, which is the first thing to weigh up when you choose tank mates. At around 35 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 Bluegill Sunfish Good for Beginners?

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

Bluegill Sunfish - frequently asked questions

What size tank do Bluegill Sunfish need?

Bluegill Sunfish need a tank of at least 265 litres (70 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 Bluegill Sunfish need?

Keep them at 41-73°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 Bluegill Sunfish eat?

Bluegill Sunfish 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 Bluegill Sunfish good for beginners?

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

Common mistakes with Bluegill Sunfish

  • Underestimating tank size - the minimum footprint is 265 litres (70 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 Bluegill Sunfish

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
  • Akar BettaPredator - Akar Betta will eat or injure smaller tank mates