Discus

Symphysodon aequifasciatus

The 'king of the aquarium' — a tall, disc-shaped cichlid demanding warm, pristine, soft water.

Water

Freshwater

Temperature

82–88°F

pH

6–7

Hardness

1–8 dGH

Max size

8 in

Min tank

55 gal

Temperament

Peaceful

Social

Social (5+)

Swim level

Mid

Diet

Omnivore

Care level

Expert

Lifespan

10-15 years

Breeding

Substrate spawner

Suitability

Expert

Origin

South America (Amazon)

Stunning but exacting: it needs high temperatures, very clean soft water, and frequent water changes. Keep a group of five or more, as they are social and skittish when alone. Best for experienced keepers ready to commit to its care.