Recommendations Aquarium Size
When keeping discus fish, you should choose one of the following four options:
1. Breeding Discuses (Discus Pair)
To breed discus fish, we recommend using an aquarium with a capacity of
150 litres/40 US gallons
(60 cm x 50 cm x 50 cm) (24” x 20” x 20”)
Juvenile fish should be separated from the parent fishes when they are 12 – 14
days old. At this age they start seeking out food on the floor of the aquarium and
could ingest pathogens or germs.
2. Discus Pair with Companion Fish in an Aquarium with Plant Life
You will need an aquarium with a capacity of at least
180 litres/50 US gallons
(100 cm x 40 cm x 45 cm) (40” x 16” x 18”)
We recommend an aquarium size of
250 litres / 65 gallons
(100 cm x 50 cm x 50 cm) ( 40” x 20” x 20”)
When keeping a pair of discus fish, the two fish should be at least 14 cm in
size, because two smaller fish, kept as a pair, will not grow well in size, as
“competitive feeding” does not take place.
3. Rearing Discus Fish, Keeping a Discus Group
To rear a discus group (of at least 10 fish) an aquarium with as small a capacity
as180 litres / 50 US gallon is sufficient
(100 cm x 40 cm x 45 cm) (40” x 16” x 18”)
However, for 10 fully-grown fish we recommend using an aquarium with a
capacity of at least 300 litres/ 80 gallons.
4. Discus Group with Companion Fish in Aquarium with Plant Life
For 10 fully-grown discus fish with additional companion fish and plant life
we recommend using an aquarium with a capacity of at least
400 litres / 105 US gallons.
(160 cm x 50 cm x 50 cm) (63” x 20” x 20”)

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