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Discus (Symphysodon aequifasciatus)
Photo: mramorn · CC BY-SA 3.0 via Wikimedia Commons

Discus

Symphysodon aequifasciatus · Cichlidae

Also known as Pompadour fish

Advanced

The showpiece cichlid: needs very warm, spotless, soft water and a group of six or more.

In short: A discus needs at least 250 L (66 US gal), water at 28–31 °C (82–88 °F) and pH 5.5–7. It is peaceful, best kept in groups of 6 or more, and rated advanced to keep.

Updated

Minimum tank
250 L (66 US gal)
Temperature
28–31 °C (82–88 °F)
pH
5.5–7
Adult size
18 cm (7.1 in)
Group size
6+

Care requirements

Minimum tank volume
250 L (66 US gal)
Temperature
28–31 °C (82–88 °F)
pH
5.5–7
Hardness
1–8 dGH
Lifespan
10–15 years
Diet
Carnivore-leaning omnivore — beef heart mixes, frozen bloodworm, quality granules.
Care level
Advanced

Origin & habitat

Native region
Central Amazon floodplain
Water type
Freshwater
Biotope
Warm blackwater among submerged branches
Natural conditions
Very warm, very soft, acidic, stable water.

Behaviour & stocking

Temperament
Peaceful
Minimum group
6 fish
Swims
Mid-water
Good tank mates
Cardinal tetra
Sterbai corydoras
Rummynose tetra
Avoid
Panda corydoras (too warm)
Barbs
Aggressive cichlids

Breeding & difficulty

Breeding difficulty
Advanced
Sexing
Very difficult; males have thicker lips and steeper foreheads.
Notes
Pairs lay on cones and feed fry on body slime; needs RO water and daily changes.
Common ailments
Hexamita
Gill flukes
Discus plague
Bacterial infections
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