Save the Little Fish

Angelfish, Pterophyllum scalare

Cichlids · Pterophyllum

Angelfish

Pterophyllum scalare · Flooded forests of the Amazon basin

Photo: Rjcastillo, CC BY 4.0, via Wikimedia Commons

The Angelfish (Pterophyllum scalare) is a freshwater fish from Flooded forests of the Amazon basin, where it lives in flooded forest habitat. Adults reach about 15 cm (5.9 in). Keep it at 24–30 °C (75–86 °F) and pH 6–7.5, in calm water. It is semi-aggressive and does best in a group of 5 or more. It eats most foods: flakes, small pellets and frozen foods.

At a glance

Water temperature

24–30 °C 75–86 °F

pH ≈

6–7.5 neutral water

Adult size

15 cm 5.9 in

Swims ≈

Mid-water mostly in open water

Keep together

5 or more a shoal feels safe

Current

Calm still or slow water

Food

Eats most foods

Temperament

Semi-aggressive

Where it comes from

Home water

Flooded forests of the Amazon basin

Lives in flooded forest habitat.

The dot marks where it's collected. Home from iNaturalist native sightings (42). Map: Natural Earth.

Tank mates

Checked against a roomy 300 L planted tank with low flow and plenty of caves. Your own tank may change the answer: try it in Your tanks.

In the hobby

Where to find it

No store or breeder we know of has it right now.

Run a store? List the fish you usually have. Breed fish? List your fry.

From keepers

Peaceful with each other, but the cardinal school keeps shrinking.

Questions keepers ask

How big does an Angelfish get?

About 15 cm (5.9 in) as an adult.

What temperature does an Angelfish need?

24–30 °C (75–86 °F).

What pH does an Angelfish need?

pH 6–7.5.

Does an Angelfish need to be kept in a group?

Yes. Keep at least 5.

Is the Angelfish aggressive?

It can be. It is semi-aggressive, so choose tank mates carefully.

What does an Angelfish eat?

It eats most foods: flakes, small pellets and frozen foods.

Where does the Angelfish come from?

Flooded forests of the Amazon basin.

What fish can live with an Angelfish?

Good tank mates include Candy stripe (L015), Zebra (L046), Agassiz's dwarf cichlid, Amano shrimp, Boeseman's rainbowfish.

All the numbers

Temperature min (°C)24 Sourced
Temperature max (°C)30 Sourced
pH min6 Sourced
pH max7.5 Estimate
Adult size (cm)15 Sourced
FlowLow Sourced
Habitatfloodplain Estimate
Smallest happy group5 Sourced
TemperamentSemi-aggressive Sourced
DietOmnivore Sourced
Behaviour tagseats_small_fish,long_fins Sourced
Typical price min (CAD)8 Estimate
Typical price max (CAD)30 Estimate

Some values are estimates from typical hobby ranges and haven't been checked against a source yet.

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